Where are you ___________ your letter? [ ]
A. sending
B. send
C. to send
答案:A
Please _____ the TV. I want to watch football match on TV.[ ]
A. turn on
B. turn off
C. open
D. close
They finally managed to climb to the top,but __then.
A.went the children down the hill
B.down the hill did the children go
C.down the hill went the children
D.down the hill the children went