—What do you think we can do for our aged parents？
—You do anything except that you visit them as often as possible.
| A．don’t have to | B．oughtn’t to | C．mustn’t | D．shouldn’t |
—Did you have ________ fun at the party?
—Yes. It’s ________ shame that you missed it.
| A．a; a | B．/; / | C．/; a | D．a; / |
I don’t allow you ________ so high a mountain.
| A．to risk going | B．risking to go | C．going to risk | D．risk going |
The old man was telling a funny story, surrounded by many kids, _________ with fascination.
| A．all of whom listened | B．all of whom listening |
| C．all of them listened | D．all of them were listening |
With everything ________, he felt tired but happy.
| A．to do | B．done | C．had been done | D．to be done |
I am sorry to have you ________ so long.
| A．waited | B．to wait | C．waiting | D．to be waiting |