Câu hỏi: When you see your teacher approaching you, a slight wave to attract his attention is appropriate.

A. coming nearer to

B. pointing at

C. looking up to

D. catching sight of

Câu 1: Billy, come and give me a hand with cooking.

A. help

B. prepared

C. be busy

D. attempt

Câu 2: Do you know how many countries __________ part in the sporting event?

A. take

B. make

C. have

D. do

Câu 3: Many plants and animal species are now on the _______ of extinction.

A. danger

B. border

C. margin

D. verge

Câu 4: _____________ is a detailed description of a person's life.

A. Detective book

B. Comic

C. Biography

D. Cartoon

Câu 5: Reading ___________ an integral role in enhancing knowledge and relaxing.

A. has

B. holds

C. takes

D. plays

Câu 6: 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