Câu hỏi: I missed the lessons yesterday so I have to___________ on work.

A. put up

B. catch up

C. work up

D. go with

Câu 1: Each nation has many people who voluntarily take care of others.

A. bring along

B. get on with

C. keep up with

D. look after

Câu 2: Many plants and animal species are now on the _______ of extinction.

A. danger

B. border

C. margin

D. verge

Câu 3: Some of the participating schools have also decided to use green cleaning products, which are safer since they do not ……. harmful chemicals into the environment.

A. release

B. expose

C. compound

D. deplete

Câu 4: With the strong support of their countrymen, the Vietnamese athletes competed in ___________ spirits.

A. big

B. strong

C. high

D. lot

Câu 5: He is one of the most ………. bosses I have ever worked with. He behaves rudely to not only me but also others in the staff.

A. thoughtful

B. impolite

C. attentive

D. communicative

Câu 6: Reading ___________ an integral role in enhancing knowledge and relaxing.

A. has

B. holds

C. takes

D. plays