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
Tigers      eat fruits and the camel      eat meat .
#58973
A
don’t ; doesn’t
B
doesn’t ; don’t
C
don’t ; don’t
D
doesn’t ; doesn’t