题目内容
19.What time ____ the boy _____ his homework?( )| A. | does; does | B. | does; do | C. | do; do | D. | do; does |
分析 这个男孩在几点做他的作业?
解答 答案:B.考查助动词.句意"这个男孩在几点做他的作业?".原句是what time+一般疑问句构成的特殊疑问句,主语是the boy单数形式,含有实义动词,一般现在时态,因此变一般疑问句用助动词does,实义动词用原形do.答案是B.
点评 助动词,帮助实义动词构成否定句和一般疑问句的,要根据时态,人称等选择正确用法完成试题.
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