Not until he went through real hardship the love we have for our families is important.（2013．福建）
| A．had he realized |
| B．did he realize |
| C．he realized |
| D．he had realized |
.
Tom, you ________ leave all your clothes on the floor like this next time.
| A．wouldn’t | B．mustn’t | C．needn’t | D．may not |
.
We are looking forward with hope to ________ from Ms Smith.
| A．hear | B．hearing | C．heard | D．being heard |
.
Could you ________ the TV? I can’t hear clearly.
| A．turn up | B．turn on | C．turn down | D．turn off |
.
It ________ I arrived at the station ________ I found the train was delayed.
| A．was until; that | B．wasn’t until; that | C．was until; when | D．wasn’t until; when |
.
No teachers are permitted ________ in the classroom or in the office.
| A．smoke | B．smoking | C．to smoke | D．smoked |