( )The teacher told me that the students I wanted to see were seen___ football on the playground just now.
| A．playing | B．to be playing | C．play | D．to play |
( ) Is the river_____ through that town very large?
| A．which flows | B．flows | C．that flowing | D．whose flows |
( ) The reason ____he was absent from the meeting was ____his car broke down on the way.
| A．that; because | B．why; that | C．that; that | D．for; that |
( ) Is this factory ______you visited last week?
| A．that | B．where | C．the one | D．in which |
( )They won’t allow us ________ at this beach.
| A．swimming | B．to swim | C．swam | D．swim |