Only under special circumstances ________ to surf online.
A. are freshmen permitted
B. freshmen are permitted
C. permitted are freshmen
D. are permitted freshmen
查看答案
Hardly______ the airplane_________ when the waiting crowd ran toward it.
A. had, landed
B. has, landed
C. did, land
D. was, landing
In the classroom ________ .
A. had many students sat
B. many students sat
C. sat many students
D. did many students sit
Only by speaking with the microphone__________.
A. was he able to make himself hear
B. he was able to make himself hear
C. he was able to make himself heard
D. was he able to make himself heard
I’m sorry Andy didn’t want to have the interview.________ willing to go we would have paid all his expenses.
A. Being
B. Was he
C. He had been
D. Had he been
微信支付 
支付宝支付