You _____ practise the drums while the baby is sleeping.
| A．needn’t | B．mightn’t |
| C．mustn’t | D．won’t |
In the summer vacation we____ often take a walk along the river.A might B could C would D should
If you listen to me, you ____have some candies, Tommy.
| A．are able to | B．shall | C．must | D．need |
Oh, I’m not feeling well in the stomach. I ______ so much fried chicken just now.
| A．shouldn’t eat | B．mustn’t have eaten | C．shouldn’t have eaten | D．mustn’t eat |
The poor boy _____ the test again; in that case, his mother will be very disappointed.
| A．must have failed | B．might fail | C．could have failed | D．should fail |
—Don’t forget to take the message to my teacher.—_____.
| A．Yes, I will | B．No, I won’t | C．I don’t’ think so | D．Sorry, I don’t |