Câu hỏi: My elder sisters, both of them were doctors, said they were too busy to pick me up.

A. elder

B. both of them

C. too busy 

D. to pick

Câu 1: My father asked me where had I gone the night before.

A. the

B. asked me

C. had I

D. before

Câu 2: My pen has very few ink in it, so could you give me some

A. has 

B. few ink

C. could

D. some

Câu 3: Proteins are made up of folded irregularly chains, the links of which are amino acids.

A. made up of

B. folded irregularly

C. the links

D. which

Câu 4: Could you tell me how can I get to the city library, please?

A. Could

B. me

C. how can I

D. the

Câu 5: It is recommended that people to take regular exercise.

A. recommended

B. people

C. to take

D. exercise

Câu 6: My sister told me that she had met my teacher at the supermarket yesterday.

A. My sister told

B. had met

C. at the supermarket 

D. yesterday