His parents were worried that he        too much time chatting on line.

His parents were worried that he        too much time chatting on line.

His parents were worried that he ________ too much time chatting on line.

1. A.
   spent
2. B.
   cost
3. C.
   paid
4. D.
   had

His parents were worried that he________ too much time chatting on line．

A．spent              B．cost               C．paid               D．had