________ is possible to finish the work in two days.

[    ]

A. It   B. What   C. That   D. Which

For centuries, wind power has been used _________ grains into flour.

[    ]

A. in turning   B. for turning   C. for turn   D. to turning

This song sounds _________. Would you like to sing another?

[    ]

A. badly   B. bad   C. goodly   D. well

　　Our food will run out. It can only _________ for 2 days.

　　[    ]

　　A. last   B. support   C. keep   D. enough

Mathematics _________ very important. Each of us __________ studying it.

[　　]

You _________ be tired, for you have worked for quite a long time.

He _________ be tired, for he has just begun to work.

[　　]

The injured _________ to the hospital already.

[　　]

Stop hunting this kind of deer. They _________.

[　　]

Most of the people _________ to the party were famous scientists.

[　　]

When the group were about to leave the forest, they could not find Sun Yao because _________.

[　　]

A． he was lost.

B． he was working on a new plant about one kilometre behind.

C． he had left earlier.

D． he was sleeping by the fallen tree.