题目内容
3.-Have your grandparents ever been to Hainan?-Yes,they .( )
| A. | do | B. | have | C. | had | D. | did |
分析 --你的祖父母曾经去过海南吗?--是的,他们去过.
解答 答案:B.常见的助动词有be,have,do,will等等,它们本身没有什么具体的含义,主要是用来帮助构成时态,完成句子.根据"Have your grandparents ever been to Hainan?"可知在本题中使用了have来帮助构成现在完成时,在回答一般疑问句是现在完成时的句子的时候,也要用助动词have来回答,来表示一个省略的现在完成时.完整的回答是:Yes,they have ever been to Hainan.故选B.
点评 首先要掌握这几个助动词的基本用法,然后结合具体的题目,就可以确定正确答案.
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