We _____ in this pool when we were young, but now it _____ fish. 
#59147
A
are used to swim; used to keep
B
are used to swimming; used to keep
C
used to swimming; is used to keep
D
used to swim; is used for keeping
推荐题目
My teacher’s new hair style makes her________.
#61607
A
to look young
B
looks young
C
look young
D
looking young
---What color_____ the cats?---I think ________white and black.
#59319
A
are ,they’re
B
is ,they’re
C
is ,it’s
D
are ,it’s