He went to the couch and _____ it, uncertain what to do next.
| A．got into |
| B．sank into |
| C．looked into |
| D．sat down |
—Why didn’t you attend the lecture yesterday?—I didn’t think that we _______ on Sundays.
| A．should | B．ought to have | C．shouldn’t have | D．will have to |
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 |