Humans _________ atmospheric carbon dioxide concentration by a third since the Industrial Revolution began.
B. have increased
C. had increased
D. were increasing
Giải bởi Vietjack
Đáp án đúng: B
Giải thích: Công thức: S + have/ has Ved/ V3 SINCE + S + has/have + V(PII)
Dịch: Con người đã tăng nồng độ carbon dioxide trong khí quyển lên một phần ba kể từ khi Cách mạng Công nghiệp bắt đầu.
Finish each of the following sentences in such a way that it means the same as the sentence printed before it.
He was frequently criticised for his self-centred attitude but was nonetheless very popular.
=> Frequently ............................
Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbers blanks
Deep sleep is important for everyone. The actual amount of sleep depends (23)_____ your age. A young child ought to sleep ten to twelve hours, and a teenager about nine hours. Adults differ a lot in their sleeping habits. For most of them, seven to eight hours a night is (24)_____, but some sleep longer, while others manage with only four hours.
For a good night, having a comfortable (25)_____ to sleep is very important. Also, there should be (26)_____ of fresh air in the room. A warm drink sometimes helps people to sleep, although it is not a good idea to drink coffee immediately before going to bed.
If you have to travel a very long distance, try to go to bed earlier than usual the day before the journey. This will help you to feel more (27)_____ when you arrive.
“If you don’t pay the ransom, we’ll kill your son,” the kidnappers said to them.
=> The kidnappers threatened ................
Write your paper more carefully or the teacher can’t read it.
=> If ..........................
I believe (A) that disabilities should not to prevent(B) people from (C) participating fully (D) in our community's life.
Circle one option (A, B, C, or D) to indicate the underlined part that needs correction in each of the following questions.
One of the (A) most important tasks (B) of parents is to teach (C) their kids to live independent(D).
For most of them, seven to eight hours a night is (24)_____, but some sleep longer, while others manage with only four hours.
In most institutions in the UK, the_______starts in September or October and runs until June or July.
My father used to giving(A) me some good (B) advice whenever (C) I had a problem(D).
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
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
