Câu hỏi: It’s necessary __________ your listening and writing skills.

A. to improve

B. improve

C. improving

D. improved

Câu 1: My mother told me __________ hard.

A. study

B. studying

C. to study

D. studied

Câu 2: – Do you have to buy this hat? – No, I _____. It isn't necessary.

A. mustn't

B. won't

C. needn't

D. don't need

Câu 3: We decided ________ at home this afternoon.

A. staying

B. stayed

C. stay

D. to stay

Câu 4: Ba always ____________ the homework before going to class.

A. does

B. dos

C. do

D. is doing

Câu 5: Alice wasn’t ___________ to be in my class.

A. too old

B. old enough

C. so old

D. such old

Câu 6: I usually watch TV ________ the evening.

A. on

B. at

C. in

D. All are correct