One way to understand thousands of new words is to gain _____ good knowledge of basic word information.
A. 不填 B. a C. the D. one
It was announced that only when the fire was under control ____ to return to their homes.
A. the residents would be permitted
B. had the residents been permitted
C. the residents had been permitted
D. would the residents be permitted
The driver _____ for the accident had not been driving carefully.
A. blamed B. being blamed
C. to be blamed D. blaming
You should read the _________ in the car repair manual (手册) carefully before you start to work on it.
A. instructions B. descriptions
C. introductions D. explanations
_____ to nuclear radiation, even for a short time, may produce variants (变异体) of genes in human bodies.
A. Exposed B. Being exposed
C. Having exposed D. After being exposed
书面表达 写一篇短文
李华减肥以后，感到身体疲倦、虚弱，不知如何是好，于是他写了一封电子邮件向健康专家求教。请根据下面内容，以李华的名义写一封邮件。词数100左右。
原因：觉得自己太胖，体重不断增加，担心形象不美，有同学骂他。
过程： 1. 去健身房，两三次就放弃了，感觉太累也没时间。
2. 节食，坚持了大约一个星期，经常饿得不能继续他的学习。
3. 悄悄服用减肥药，一开始有效果，体重迅速下降，但减肥药对他产生副作用。
Dear Health Expert,
I have got a problem and I need to ask for your help. _____________________________________________________________________________________
_____________________________________________________________________________________
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