A. for； as B. of； though C. for； though D. of； as

A. look B. watch C. read D. see

【题目】一___________ do your parents take exercise, William?—Less than three times a week.
A.How long
B.How much
C.How soon
D.How often

【题目】Tom wants to study at university in Europe,but hasn't decided which one to go to yet.
A.an
B.a
C. the
D.不填

A. neither do I B. neither will I

C. so I do D. nor I will

A. dead； died B. died； dead C. death； died D. death； dead

A. if B. unless C. since D. that

—________I'm typing an important letter.

A. Will you? B. I hope so.

C. Why not? D. I'm afraid not.

A. asB. forC. fromD. to

A. to B. in C. of D. at