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

A. to appear

B. appear

C. by appearance

D. by appearing

Câu 1: My friend is ______ so she has a lot of free time.

A. singer

B. single

C. married

D. free

Câu 2: Those students are working very _____ for their next exams.

A. hardly

B. hard

C. harder

D. hardest

Câu 3: I know somebody ________ can play the guitar.

A. he

B. who

C. what

D. that he

Câu 4:  __________ at home yesterday?

A. Do you stay

B. Did you stay

C. Have you stayed

D. Will you stay

Câu 5: We know their address, but they don’t know ________.

A. their’s

B. our

C. our’s

D. ours

Câu 6: Jane _____ as a fashion designer for ten years before becoming a famous singer.

A. worked

B. is working

C. works

D. will work