Câu hỏi: The two children blamed each other ...... the window.

A. to break

B. breaking

C. for breaking

D. having broken

Câu 1: The waste from the chemical factory is extremely .......

A. harm

B. harmful

C. unharmed

D. harmless

Câu 2: Express Money Transfer is one of the quickest ways ……..help us to send money.

A. who

B. whose

C. when

D. that

Câu 3: The campaign will hopefully ensure the survival ...... the tiger.

A. of

B. for

C. to

D. on

Câu 4: I threw my old trainers and bought some new .................. .

A. ones

B. one

C. some

D. any

Câu 5: I would like to send these letters …………………..air mail.

A. in

B. with

C. by

D. over

Câu 6: People are destroying the air by adding ...... to it.

A. pollutants

B. polluters

C. pollution

D. polluted