---- Have you been here before?---- This is the second time I ______to the Great Wall.
#103490
A
comes
B
have been
C
came
D
had come
推荐题目
 One learns a language by making mistakes and ______ them.
#101915
A
corrects
B
correct
C
to correct
D
correcting
He has changed a lot. He _________ not what he _________. 
#104719
A
is, is
B
was, was
C
is, was
D
was, is
Mr Smith suggested the problem worth paying attention to ________ at the meeting. 
#104578
A
should discuss
B
was discussed
C
being discussed
D
be discussed