Tom's mother kept telling him that he should work harder, but ______didn't help．

1. A.
   he
2. B.
   which
3. C.
   it
4. D.
   one

Tom’s mother kept telling him that he should work harder, but ______ didn’t help.

 Tom’s mother kept telling him that he should work harder, but _________ didn’t help.

A. he                         B. which                       C. she                D. it

Tom's mother kept telling him that he should work harder, but ______didn't help．

A．he      　　 B．which             C．it                D．one

Tom’s mother kept telling him that he should work harder, but ______ didn’t help.

A．he               B．it                C．she              D．which