With more forests being destroyed, huge quantities of good earth ______ each year.
| A．is washing away | B．are being washed away |
| C．are washing away | D．is being washed away |
What a pity! All his property, the books, the pictures and the house, ______ consumed by the big fire.
| A．were | B．was |
| C．had been | D．have been |
Professor Smith，along with his assistants， ______ on the project day and night to meet the deadline.
| A．work | B．working |
| C．is working | D．are working |
He has ______ the surroundings, and now he is getting well on with his classmates； ______ ，he is treated as a normal student in the school.
| A．adjusted to; at all | B．adapted to; all in all |
| C．fitted for; after all | D．suited for; in all |
Luckily, the miners who were ______ when the mine was flooded have been rescued.
| A．trapping | B．trapped |
| C．attacked | D．attacking |