Between the two parts of the concert is an interval, ___ the audience can buy ice-cream.
| A．when |
| B．where |
| C．that |
| D．which |
---- What do you think about English? ---- It's a difficult language _____.
| A．speaking | B．to be spoken | C．to speak | D．spoken |
I really don’t know ____ .
| A．to swim | B．how to swim | C．to swim how | D．how swim |
We all think it most foolish ______ this mistake.
| A．for you making | B．of you to make | C．you to make | D．for you to make |
He told her ______ there at once.
| A．get | B．gets | C．should get | D．to get |
We did not expect our offer _____ so quickly.
| A．rejected | B．to reject . | C．to be rejected | D．rejecting |