____ they are closest friends is not clear though they live together.
| A．That | B．If | C．What | D．Whether |
There was ______ time ______ I hated to go to school.
| A．a; that | B．不填; when | C．a; when | D．the; when |
It is the first time that I ______ this kind of moon cake.
| A．enjoyed | B．have enjoyed | C．had enjoyed | D．enjoy |
You _____ down everything I said! You can find it on this sheet I’m handing out.
| A．shouldn’t have taken | B．must not have taken |
| C．cannot have taken | D．needn’t have taken |
--- I’m still working on my project.
--- Oh, you will miss the deadline. Time is .
| A．running out | B．going out | C．giving out | D．dropping out |
— I must apologize for _____ ahead of time.
— That’s all right.
| A．letting you not know | B．not letting you know |
| C．letting you know not | D．letting not you know |