If he had worked harder, he _________.
| A．would succeed | B．had succeeded |
| C．should succeed | D．would have succeeded |
The children ________ lost in the woods; otherwise, they would have been at the lakeside camp as scheduled.
| A．must have got | B．must get |
| C．should have got | D．should get |
—Why are your eyes so red? You ________ have slept well last night.
—Yeah, I stayed up late writing a report.
| A．can't | B．mustn't |
| C．needn't | D．won't |
Some young people these days just ________ go out of their homes to contact the real world.
| A．mustn't | B．won't |
| C．mightn't | D．shouldn't |
Why ________ it get colder when we climb up a mountain? We are getting nearer to the sun!
| A．ought to | B．would |
| C．should | D．must |
I ________ to my cousin's birthday party last night, but I was not available.
| A．went | B．had gone |
| C．would go | D．would have gone |