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: It doesn't cost much to run a solar power system.

A. A solar power system is quite cheap to set up.

B. Running a solar power system costs nothing.

C. A solar power system costs so much to run.

D. Running a solar power system is not costly.

Câu 2: It was an interesting novel. I, therefore, stayed up all night to finish it.

A. Though it was an interesting novel, I stayed up all night to finish it.

B. Unless it was an interesting novel, I would stay up all night to finish it.

C. So interesting was the novel that I stayed up all night to finish it.

D. I stayed up all night to finish the novel, therefore, it was interesting.

Câu 3: 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 4: 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 5: Sam doesn’t find it difficult to get up early in the morning.

A. Sam is in two minds about getting up early in the morning.

B. Sam is not hesitant to get up early in the morning.

C. Sam is accustomed to getting up early in the morning.

D. Sam is pleased with getting up early in the morning.

Câu 6: 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.