. The school has recently decided that students aren’t permitted to use mobile phones at school, but I find it difficult to _______ this decision..
| A．confirm | B．entitle | C．justify | D．testify |
No one be more generous; he has a heart of gold.（2013天津）
| A．could |
| B．must |
| C．dare |
| D．need |
---Why are your eyes so red? You _______ have slept well last night.
---Yeah, I stayed up late writing a report.（2013四川）
| A．can’t |
| B．mustn’t |
| C．needn’t |
| D．won’t |
---I’m sorry. Iat you the other day.
---Forget it. I was a bit out of control myself.
A shouldn’t shout
B shouldn’t have shouted
C. mustn’t shout
D. mustn’t have shouted
The door open , no matter how hard she pushed.（2013新课标I卷）
| A．shouldn’t |
| B．couldn't |
| C．wouldn't |
| D．mightn't |
The police still haven’t found the lost child, but they’re doing all they.（2011四川卷）
| A．can |
| B．may |
| C．must |
| D．should |