Câu hỏi: Sometimes Mr. Pike has to work very late _______ night to do some important experiments.

A. in

B. at

C. for

D. on

Câu 1: You can come here either on Monday __________ on Friday.

A. or

B. nor

C. both

D. and

Câu 2: The sun is shining and there are very few clouds; _______, I am sure it is going to rain.

A. what's more

B. hence

C. thus

D. nevertheless

Câu 3: These quick and easy _______ can be effective in the short term, but they have a cost.

A. solve

B. solvable

C. solutions

D. solvability

Câu 4: He studies _______ his two brothers.

A. much better than

B. more better than

C. more good than

D. very better than

Câu 5: John is _______ only child in his family so his parents love him a lot.

A. a

B. an

C. the

D. no article

Câu 6: Although they had no money, _________ .

A. so they were content.

B. for, their content.

C. they were content.

D. but they were content.