Thứ sáu, 15/11/2024
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Câu hỏi:

03/07/2024 1,978

She _________ working on that manuscript for 2 years now

A. has been

Đáp án chính xác

B. is

C. will be

D. had been

Trả lời:

verified Giải bởi Vietjack

Đáp án A

Khi hai hành động cùng xảy ra trong quá khứ, ta dùng thì quá khứ hoàn thành cho hành động xảy ra trước và quá khứ đơn cho hành động xảy ra sau.

Dịch nghĩa: Cô đã làm việc với bản thảo đó trong 2 năm nay rồi

Câu trả lời này có hữu ích không?

0

CÂU HỎI HOT CÙNG CHỦ ĐỀ

Câu 1:

There is a rumor that the National Bank is going to _________ the company I work for

Xem đáp án » 18/06/2021 1,153

Câu 2:

Mark the letter A, B, C or D on your answer sheet to indicate the sentence that best combines each pair of sentence in the following questions

The book is very interesting. My brother bought it yesterday

Xem đáp án » 18/06/2021 1,108

Câu 3:

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.

In the history of technology, computers and calculators were innovative developments. They are essentially different from all other machines because they have a memory. This memory stores instructions and information. In a calculator, the instructions are the various functions of arithmetic, which are permanently remembered by the machine and cannot be altered or added to. The information consists of the numbers keyed in.

An electronic pocket calculator can perform almost instant arithmetic. A calculator requires an input unit to feed in numbers, a processing unit to make the calculation, a memory unit, and an output unit to display the result. The calculator is powered by a small battery or by a panel of solar cells. Inside is a microchip that contains the memory and processing units and also controls the input unit, which is the keyboard, and the output unit, which is the display.

The input unit has keys for numbers and operations. Beneath the key is a printed circuit board containing a set of contacts for each key. Pressing a key closes the contacts and sends a signal along a pair of lines in the circuit board to the processing unit, in which the binary code for that key is stored in the memory. The processing unit also sends the code to the display. Each key is connected by a different pair of lines to the processing unit, which repeatedly checks the lines to find out when a pair is linked by a key.

The memory unit stores the arithmetic instructions for the processing unit and holds the temporary results that occur during calculation. Storage cells in the memory unit hold the binary codes for the keys that have been pressed. The number codes, together with the operation code for the plus key, are held in temporary cells until the processing unit requires them.
When the equals key is pressed, it sends a signal to the processing unit. This takes the operation code-for example, addition-and the two numbers being held in the memory unit and performs the operation on the two numbers. A full adder does the addition, and the result goes to the decoder in the calculator's microchip. This code is then sent to the liquid crystal display unit, which shows the result, or output, of the calculation.

Which of the following could NOT be said about calculators?

Xem đáp án » 18/06/2021 985

Câu 4:

It was _________ that we decided to stay indoors

Xem đáp án » 18/06/2021 895

Câu 5:

The rumours go that Jason will be arrested. He is said _________ part in a bloody robbery

Xem đáp án » 18/06/2021 884

Câu 6:

Mark the letter A, B, C or D on your answer sheet to indicate the sentence that best combines each pair of sentence in the following questions

Although she couldn’t speak English, Ngoc decided to settle in Manchester

Xem đáp án » 18/06/2021 813

Câu 7:

Mark the letter A, B, C, or D on your answer sheet to indicate the word or phrase that is OPPOSITE in meaning to the underlined part in each of the following questions.

When he passes the entrance exam, his parents will be walking on air

Xem đáp án » 18/06/2021 675

Câu 8:

Your English is improving considerably. It is getting _________

Xem đáp án » 18/06/2021 560

Câu 9:

Travelling to _________ countries in the world enables me to learn many interesting things

Xem đáp án » 18/06/2021 439

Câu 10:

Mark the letter A, B, C or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions

Manufacturers may use food additives for preserving, to color, or to flavor, or to fortify foods

Xem đáp án » 18/06/2021 399

Câu 11:

Mark the letter A,B, C or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions

“It’s a surprising gift. Thank you very much, Mary.” said Mr Pike

Xem đáp án » 18/06/2021 376

Câu 12:

Mark the letter A, B, C or D on your answer sheet to indicate the word that differs from the three in the position of primary stress in each of the following questions

Xem đáp án » 18/06/2021 352

Câu 13:

She showed us the gift she had got, which was a _________ pencil box

Xem đáp án » 18/06/2021 325

Câu 14:

Many children are under such a high _________ of learning that they do not feel happy at school

Xem đáp án » 18/06/2021 323

Câu 15:

Mark the letter A, B, C or D on your answer sheet to indicate the most suitable respone to complete each of the following exchanges

- Anne: “Do you like going to the cinema this evening?”      - Susan: “_______.”

Xem đáp án » 18/06/2021 310

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