Câu hỏi: He didn't know how to swim until he was 30.

A. It was not until he was 30 that he knew how to swim.

B. He knew how to swim after his 30s.

C. It took him 30 years to know how to swim.

D. He still didn't know how to swim until his 30s.

Câu 1: He doesn’t study hard, so he can fail the exam.

A. If he studies hard, he won’t fail the exam.

B. If he didn’t study hard, he wouldn’t fail the exam.

C. If he studied hard, he wouldn’t fail the exam.

D. If he hadn’t studied hard, he wouldn’t have failed the exam.

Câu 2: This is the first time I have lived in such a friendly neighborhood.

A. I have lived in such a friendly neighborhood before.

B. I haven’t lived in such a friendly neighborhood before.

C. I had lived in such a friendly neighborhood before.

D. I hadn’t lived in such a friendly neighborhood before.

Câu 3: I should have finished my work last night but I was exhausted.

A. Last night I was exhausted but I tried to finish my work.

B. My work was finished last night but I was exhausted.

C. I did finished my work last night thought I was exhausted.

D. I was exhausted so I didn’t finish my work yesterday as planned.

Câu 4: They are building a new highway around the city.

A. Around the city a new highway is being built.

B. A new highway is being built around the city.

C. A new highway is being built around the city by them

D. A new highway around the city is being built.

Câu 5: If I won a big prize in a lottery, I'd give up my job.

A. Although I won the lottery, I gave up my job.

B. Were I to win the lottery, I gave up my job.

C. Unless I won the lottery, I gave up my job.

D. Had I won the lottery, I gave up my job.

Câu 6: Only Mary scored high enough to pass this test.

A. Only on this test was Mary’s score high enough.

B. Mary was the only person to pass this test.

C. Mary only passed this test because she scored higher than the others.

D. Mary’s score was barely enough to pass.