Câu hỏi: The substance is very toxic. Protective clothing must be worn at all times.

A. Since the substance is very toxic, so protective clothing must be worn at all times.

B. So toxic is the substance that protective clothing must be worn at all times.

C. The substance is such toxic that protective clothing must be worn at all times.

D. The substance is too toxic to wear protective clothing at all times.

Câu 1: They/ not answer/ phone/ this morning/ so/ must/ out/.

A. They hasn’t answered the phone this morning so they must have been out.

B. They didn’t answer the phone this morning so they must be out.

C. They didn’t answer the phone this morning so they must have gone out.

D. They hasn’t answered the phone this morning so they must go out.

Câu 2: He felt very tired. He was determined to continue to climb up the mountain.

A. He felt so tired that he was determined to continue to climb up the mountain.

B. Feeling very tired, he was determined to continue to climb up the mountain.

C. Tired as he might, he was determined to continue to climb up the mountain.

D. As result of his tiredness, he was determined to continue to climb up the mountain.

Câu 3: He smokes too much; perhaps that’s why he can’t get rid of his cough.

A. If he didn’t smoke so much, he may get rid of his cough.

B. If he smoked less, he might be able to get rid of his cough.

C. If he smoked so much, he couldn’t get rid of his cough.

D. If he does not smoke, he may not have his cough.

Câu 4: John is studying hard. He doesn’t want to fail the exam.

A. John is studying hard in Oder not to fail the next exam

B. John is studying hard in Oder that he not fail the next exam

C. John is studying hard so as to fail the next exam

D. John is studying hard in Oder to not to fail the next exam

Câu 5: We cut down many forests. The Earth becomes hot.

A. The more forests we cut down, the hotter the Earth becomes.

B. The more we cut down forests, the hotter the Earth becomes.

C. The more forests we cut down, the Earth becomes hotter.

D. The more we cut down forests, the Earth becomes hotter.

Câu 6: People say that at least ten applicants have been selected for the job interview.

A. It is said that well over ten people are interested in having an interview for the job.

B. It is said that no fewer than ten people are going to be interviewed for the job.

C. People say that fewer than ten job interviews have been held so far.

D. I have heard that only ten people have been chosen to have the job interviewed.