As we all know, , the pollution will get worse and worse.
| A．not if carefully dealt with |
| B．until not carefully dealt with |
| C．if not carefully dealt with |
| D．when not carefully dealt with |
Mr Smith never looks tired. He is full of ________.
| A．power |
| B．force |
| C．strength |
| D．energy |
On her next birthday, Ann _______ married for twenty years.
| A．is |
| B．has been |
| C．will be |
| D．will have been |
I ________ thank you too much for all your help to my son while we were away from home.
| A．won’t |
| B．can’t |
| C．can |
| D．will |
We ________have bought so much food now that Suzie won’t be with us for dinner.
| A．may not |
| B．needn’t |
| C．can’t |
| D．mustn’t |
We had a party to ________ Mother’s silver wedding.
| A．congratulate |
| B．celebrate |
| C．win |
| D．defend |