The Smiths consider _____ a computer, which is commonly considered _____ a great help in their work and study.
| A．to buy; to be | B．buying; to be |
| C．to buy; being | D．buying; being |
If you really want yourself to be in good health, you must＿＿＿always＿＿＿so much.
| A．not； be smoking | B．not； have smoked |
| C．not； to smoke | D．be not； smoking |
I＿＿＿＿＿＿it again.
| A．would like you to read | B．would like that you read |
| C．would like you reading | D．would like you read |
The chairman requested that ＿＿＿＿＿＿＿＿＿＿＿.
| A．the members studied the problem more carefully |
| B．the problems were more carefully studied |
| C．the problems could be studied with more care |
| D．the members study the problem more carefully |
I＿＿＿＿＿＿Professor Jones had taught me this question.
| A．believe | B．deeply think | C．wish | D．suppose |
—— It is rather cold here. Shall we light a fire?
—— No, we＿＿＿＿＿＿because things are easy to catch fire.
| A．won’t | B．can’t | C．mustn’t | D．needn’t |