Câu hỏi: We are grateful (at/in/on/to) our teacher.

A. at

B. in

C. on

D. to

Câu 1: Ottawa is .......... Canada.

A. with

B. on

C. to

D. in

Câu 2: We are present (at/in/to/of) the lecture yesterday.

A. at

B. in

C. to

D. of

Câu 3: I shall wait .......... you.

A. about

B. by

C. to

D. for

Câu 4: She has suffered (from/to/with/about) her heart attack.

A. from

B. to

C. with

D. about

Câu 5: Your words are contrary (to/in/on/of) your acts.

A. to

B. in

C. on

D. of

Câu 6: I was absent (at/in/to/from) class before yesterday.

A. at

B. in

C. to

D. from