Not only_______give us relaxation and pleasure,but also_____increase our knowledge.

A.can travel;it can                       B.travel can;can it

C.can travel;can it                       D.travel can;it can

Not only_______give us relaxation and pleasure,but also_____increase our knowledge.

1. A.
   can travel;it can
2. B.
   travel can;can it
3. C.
   can travel;can it
4. D.
   travel can;it can