Nobody except Mr. Green and his children _______ abroad before. 答案(
A. has been to
B. has been
C. have been to
D. has gone
I suppose they must be trying out new ideas in the lab, __________. 答案(
A. don`t I
B. mustn`t they
C. aren`t they
D. needn`t they
The plane left _______ Shanghai ________ a rainy morning. 答案(
A. to, in
B. for, on
C. in, on
D. at , in
Jack is a green-hand. But all the workers ________ highly _______ his work when he finished working in the factory for half a year 答案(
A. thought, over
B. thought , of
C. thought, for
D. thinks , of