In the environment area, there is a system ________ the waste is disposed of by using the principles of ecology.
| A．in which | B．which |
| C．on which | D．that |
_____by the sales figures, they decided to go out and ______.
| A．Excited; to celebrate | B．Exciting; celebrate |
| C．Excited; celebrate | D．Exciting; celebrating |
_______by the noise, they had to finish the meeting early.
| A．Being disturbed | B．Disturbed |
| C．Disturbing | D．Having disturbed |
.His life was devoted to _____the poor out.
| A．helping | B．help | C．being helped | D．having helped |
He escaped from death, because he changed his plan _____ the last minute.
| A．at | B．in | C．for | D．on |
– She isn’t feeling very well today.
---You’re right. ______ to have caught cold.
| A．It appears | B．It appears that |
| C．She appeared | D．She appears |