Câu hỏi: We know their address, but they don’t know ________.

A. their’s

B. our

C. our’s

D. ours

Câu 1: Listen! Somebody __________ for help.

A. are screaming

B. scream

C. is screaming

D. has screamed

Câu 2: Among my friends, Lan is the __________ of all.

A. most interestingcorrect

B. more interesting

C. so interesting as

D. as interesting as

Câu 3: I ____ a car next year.

A. going to buy

B. am buying

C. buy

D. bought

Câu 4: I send ______ a letter every month.

A. her

B. she

C. herself

D. hers

Câu 5: My friend is ______ so she has a lot of free time.

A. singer

B. single

C. married

D. free

Câu 6: Some animals sometimes fool their enemies __________ to be lead.

A. to appear

B. appear

C. by appearance

D. by appearing