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: Steve said to Mike, “Don’t touch the electric wires. It might be deadly.”

A. Steve advised Mike not to touch the electric wires as it might be deadly.

B. Steve warned Mike not to touch the wires as it might be deadly.

C. Steve suggested that Mike not touch the electric wires as it might be deadly.

D. Steve did not allow Mike to touch the electric wires as it might be deadly.

Câu 2: Why don’t you take extra classes in English if you want to become a tourist guide?” said my friend.

A. My friend advised me to take extra classes in English only if I wanted to become a tourist guide.

B. My friend suggested I take extra classes in English if I wanted to become a tourist guide.

C. In my friend’s opinion, I will never become a tourist guide if I don’t take extra classes in English.

D. In my friend’s opinion, taking extra classes in English is necessary if I wanted to become a tourist guide.

Câu 3: People believed that Jane retired because of her poor health.

A. Jane is believed to have retired because of her poor health.

B. Jane was believed to have retired because of her poor health.

C. It is believed that Jane retired because of her poor health.

D. Jane retired because of her poor health was believed.

Câu 4: They were exposed to biased information, so they didn't know the true story.

A. If they got unbiased information, they could know the true story.

B. If they had unbiased the information, they could have known the true story.

C. If they had been exposed to unbiased information, they would have known the true story.

D. If they have exposed to the unbiased information, they could have seen the true story.

Câu 5: 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 6: "I have never been to Russia. I think I shall go there next year.” said Bill.

A. Bill said that he had never been to Russia and he thought he would go there the next year.

B. Bill said that he would have never been to Russia and he thinks he would go there the next year.

C. Bill said that he had never been to Russia and he thinks he will go there the next year.

D. Bill said that he has never been to Russia and he thinks he would go there the next year.