Câu hỏi: Not until I left home did I realize how much my father meant to me. 

A. I realized how much my father meant to me just when I was home.

B. I left home and didn't realize how much my father meant to me.

C. It was only when I left home that I realized how much my father meant to me. 

D. Before I left home, I had realized how much my father meant to me. 

Câu 1: I plan to come back to Korean, ………..we had a chance to visit ten years ago. 

A. which

B. where

C. that

D. in which

Câu 2: It was thought that the accident was caused by human error. 

A. People think that human error causes the accident. 

B. The accident was thought to be caused by human error. 

C. The accident is thought to cause human error

D. People thought that the accident is caused by human error. 

Câu 3: The film was so boring that I fell asleep. 

A. I fell asleep because the film was very boring.

B. It was such an interesting film that I fell asleep.

C. The film was interesting enough, but I fell asleep.

D. The film was too boring for me to fall asleep.

Câu 4: By next Friday, Sam……….five speeches. 

A. gives 

B. will give

C. will have given

D. has given

Câu 5: Our opinions on the subject are identical. 

A. There's some difference in our opinions on the subject.

B. We differ in opinions on the subject.

C. We have the same opinions on the subject.

D. We look like each other.

Câu 6: She started working as a secretary five years ago. 

A. She will work as a secretary for five years.

B. She worked as a secretary forfive years.

C. She hasn't worked as a secretary for five years. 

D. She has worked as a secretary for five years.