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Câu hỏi:

20/07/2024 91

Many things that by hand______by machine.


A. used to be doing / are now doing



B. used to do / are now doing



C. used to do / are now done



D. used to be done / are now done


Đáp án chính xác

Trả lời:

verified Giải bởi Vietjack

Đáp án đúng: D

Giải thích: to be + V-PII: bị động; used to be + V-PII: đã từng được

Dịch: Rất nhiều thứ ngày trước đã từng được làm thủ công nay có thể làm bằng máy.

Câu trả lời này có hữu ích không?

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CÂU HỎI HOT CÙNG CHỦ ĐỀ

Câu 1:

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.

Ministers have dismissed the rumours of a bribery scandal as nonsense.

Xem đáp án » 13/10/2022 149

Câu 2:

Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.

Xem đáp án » 13/10/2022 141

Câu 3:

The culture has been_____ with the arrival of immigrants.

Xem đáp án » 13/10/2022 141

Câu 4:

He was presented with a gold watch in_____ of his years as club secretary.

Xem đáp án » 13/10/2022 141

Câu 5:

Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.

Xem đáp án » 13/10/2022 134

Câu 6:

It gets_____ to understand what the professor has explained.

Xem đáp án » 13/10/2022 133

Câu 7:

It has been translated into 25 languages, including Chinese, and was made into a major motion picture for (45)_____ Tan co-wrote the screenplay

Xem đáp án » 13/10/2022 132

Câu 8:

According to Christopher McKay, the possibility of transforming Mars

Xem đáp án » 13/10/2022 132

Câu 9:

The Green Party is dedicated to protecting the environment.

Xem đáp án » 13/10/2022 127

Câu 10:

We spent a week visiting the wonders of Ancient Greek______

Xem đáp án » 13/10/2022 127

Câu 11:

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 following questions.

According to the best evidence gathered by space probes and astronomers, Mars is an inhospitable planet, more similar to Earth's Moon than to Earth itself - a dry, stark, seemingly lifeless world. Mars' air pressure is equal to Earth's at an altitude of 100,000 feet. The air there is 95 percent carbon dioxide.

Mars has no ozone layer to screen out the sun's lethal radiation. Daytime temperatures may reach above freezing, but because the planet is blanketed by the mere wisp of an atmosphere, the heat radiates back into space. Even at the equator, the temperature drops to -50C (-60F) at night. Today there is no liquid water, although valleys and channels on the surface show evidence of having been carved by running water. The polar ice caps are made of frozen water and carbon dioxide, and water may be frozen in the ground as permafrost.

Despite these difficult conditions, certain scientists believe that there is a possibility of transforming Mars into a more Earth-like planet. Nuclear reactors might be used to melt frozen gases and eventually build up the atmosphere. This in turn could create a "greenhouse effect" that would stop heat from radiating back into space. Liquid water could be thawed to form a polar ocean. Once enough ice has melted, suitable plants could be introduced to build up the level of oxygen in the atmosphere so that, in time, the planet would support animal life from Earth and even permanent human colonies. "This was once thought to be so far in the future as to be irrelevant," said Christopher McKay, a research scientist at NASA. "But now it's starting to look practical. We could begin work in four or five decades."

The idea of "terra-forming" Mars, as enthusiasts call it, has its roots in science fiction. But as researchers develop a more profound understanding of how Earth's ecology supports life, they have begun to see how it may be possible to create similar conditions on Mars. Don't plan on homesteading on Mars any time soon, though. The process could take hundreds or even thousands of years to complete and the cost would be staggering.

What does the passage mainly discuss?

Xem đáp án » 13/10/2022 127

Câu 12:

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

Xem đáp án » 13/10/2022 126

Câu 13:

The other passengers will get on the bus soon. Then we'll leave.

Xem đáp án » 13/10/2022 126

Câu 14:

After she_____all the greetings cards, the singer____ a short thank-you speech.

Xem đáp án » 13/10/2022 125

Câu 15:

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

Xem đáp án » 13/10/2022 124

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