The population of many Alaskan cities has ______ doubled in the past three years.
| A．as great as | B．as many as | C． more than | D．larger than |
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 |
The book is neither yours nor mine. Whose ________ it be?
| A．must |
| B．may |
| C．should |
| D．can |