We _____in this pool when we were young ,but now it ____fish .
A.are used to swim ,used to keep |
B.are used to swimming , is used to keep |
C.used to swim,used to keep |
D.used to swim,is used for keeping |
We _____in this pool when we were young ,but now it ____fish .
A.are used to swim ,used to keep |
B.are used to swimming , is used to keep |
C.used to swim,used to keep |
D.used to swim,is used for keeping |