He has recently _____ chess to provide himself with some relaxation.
| A．taken on | B．taken up | C．held on | D．held up |
----Dad, please open the door, it ______.
----OK, dear. I am coming.
| A．was locked | B．locks | C．is locked | D．locked |
This kind of sweater______very soft.
| A．is felt | B．feels | C．feel | D．is feeling |
----Have all the students known that our class will visit the factory this afternoon?
----Yes. Every student______about it.
| A．told | B．has told | C．was told | D．tells |
The cake ______delicious.
| A．smell | B．is smelled | C．is smelling | D．smells |
My father has given up smoking since he ______on.
| A．will operate | B．will be operated | C．operated | D．was operated |