I think _____necessary to learn English well.
A. its
B. it
C. that
D. that is
查看答案
The dog ____ mad.
A. looks
B. is looked
C. is being looked
D. look
10.I will never forget the day ______ I joined the army.
A. that
B. when
C. in which
D. where
It is difficult for me ______ so much work within one night. Can you help me?
A. finish
B. finishing
C. to finish
D. finished
John with two of his friends ____ to play basketball every Sunday afternoon.
A. go
B. went
C. goes
D. gone