8．Fleming invented many new ways to treat the wounds.

9O．n a bench by the sink,he found some old glass containers,which he had been growing bacteria.

7．In twentieth century,Fleming discovered it.

6．The funds are limiting and it is possible to meet all the needs.

5．It is said that a society can be judged in the way it cares for its weaker members.

4．The disease of AIDS has caused over 30% of low?income residents to live on poverty.

3．It does not cover health care,house or education.

2．So far,the project helped more than 2000 people receive medical aid.

下面每句中有一处错误，请改正。

1．Wang is a laying－off worker,who suffers from AIDS.

20．The moment we had been looking forward to 　 at last.

ing　　e　　es　　D.came

19．Accidents often 　 out of carelessness.

A.rise　　B.raise　　C.go up　　D.arise