These kids are quick at learning. We'd better have them _______in a new way.
| A．training |
| B．train |
| C．to be trained |
| D．trained |
This is a process happens when land becomes desert people cut down trees and dig up grass.
| A．when; because | B．that; because of | C．when; because of | D．which; because |
The director thought I was referring to her,in fact, I was referring to the men on duty.
| A．when | B．where | C．which | D．while |
With several students , Mr. Smith came into the lab.
| A．follow | B．followed | C．following | D．to follow |
I couldn’t fall asleep. Every night the house as heavy trucks went past.
| A．struck | B．beat | C．hit | D．shook |
While working in the countryside, the students a great deal of knowledge on plant life.
| A．looked up | B．picked up | C．put up | D．called up |