John ________________ (不想当) the host of the charity show.
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Millions of people _________________ (已学会使用) computers.
The patient was warned food after the operation. A. B. C. D.
A. to eat not
B. eating not
C. not to eat
D. not eating
Internet bars mustn't let anybody bad things, especially children.
A. watch
B. to watch
C. watching
D. watches
1.当前我国农村存在的生态环境问题有()
A. 农业生产污染
B. 工业生产污染
C. 生活污染加剧
D. 资源遭到极大破坏,利用率不高