英语(选择题)
来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/08/29 03:11:17
选择题: 1、---They've had an accident. ---When( )? A have they happened B has it happened C did it happen D does it happen 请老师告诉:ABCD选项有什么区别?谢谢!
解题思路: 选择题
解题过程:
A have they happened 现在完成时,主语是他们 (指人)
B has it happened 现在完成时,主语是它(指 an accident)
C did it happen 一般过去时,
D does it happen 一般现在时
根据上文They've had an accident。我们知道车祸已经发生,下文问它什么时候发生的。所以应该用一般过去时最佳。因此正确答案为C。
另外注意happen无被动语态。
最终答案:略
解题过程:
A have they happened 现在完成时,主语是他们 (指人)
B has it happened 现在完成时,主语是它(指 an accident)
C did it happen 一般过去时,
D does it happen 一般现在时
根据上文They've had an accident。我们知道车祸已经发生,下文问它什么时候发生的。所以应该用一般过去时最佳。因此正确答案为C。
另外注意happen无被动语态。
最终答案:略