Câu hỏi: The leopard is _________ the threat of extinction.

A. in

B. on

C. under

D. below

Câu 1: The ...... friendly products are designed not to harm the natural environment.

A. environment

B. environmental

C. environmentally

D. environmentalism

Câu 2: She glanced briefly ________ his lapel badge.

A. in

B. on

C. at

D. up

Câu 3: I would like to send these letters …………………..air mail.

A. in

B. with

C. by

D. over

Câu 4: Laura reminded her roommate ...... her alarm clock for 6:00.

A. to set

B. setting

C. to be set

D. of setting

Câu 5: I threw my old trainers and bought some new .................. .

A. ones

B. one

C. some

D. any

Câu 6: Could you please provide us ……………..some more modern equipment?

A. for

B. by

C. in

D. with