Have you forgotten ______a ruler from Tom? Please remember ______it to him tomorrow.

A．borrowing, to return                              B．borrowing, returning

C．to borrow, to return                     D．to borrow, returning

Have you forgotten ________ a ruler from Tom?Please remember ________ it to him tomorrow．

1. A.
   borrowing, to return
2. B.
   borrowing, returning
3. C.
   to borrow, to return
4. D.
   to borrow, returning