在速录系统中“……”的正确打法的是（）。
A、DGIU：
B、：DGIU
C、DGIN：
D、：DGIN
参考答案：A
We had planted _____ trees by the end of last spring. [ ]
A. two hundred of
B. two hundreds
C. hundred of
D. hundreds of
To keep Chinese economy going on, the government has established an employment service system for _____ jobless urban residents, and for older laid-off and unemployed persons.
A．badly off
B．well off
C．cut off
D．paid off
