Câu hỏi: You look so tired! You _______out too late last night.

A. must have been

B. had been

C. had to be

D. should have been

Câu 1: No one but the experts was able to realize that the painting was an imitation. It greatly resembled the original.

A. It was obvious that only a person with great talent could fake a painting so successfully.

B. It was almost impossible for amateurs to realize that the painting was not authentic, though the experts could judge it quite easily.

C. The painting looked so much like the authentic one that only the experts could tell it wasn’t genuine.

D. It was hard for ordinary people to judge between the fake painting and the real one, but not for the experts.

Câu 2: This is ___________ most beautiful song I’ve ever listened to.

A. no article

B. an

C. a

D. the

Câu 3: ________as the most important crop in Hawaii is sugar cane.

A. It is ranked

B. That ranks

C. It ranks

D. What ranks

Câu 4: In my free-time, I often help mom with ___________ the house.

A. clean

B. to clean

C. cleans

D. cleaning

Câu 5: My sister is very fond ___________ eating chocolate candy.

A. about

B. of

C. at

D. with

Câu 6: I have lived here ___________ 5 years.

A. on

B. for

C. since

D. from