Question

-my glasses ? I can't read without them . I -them on your bed , but

Answer 1

--- _____ my glasses ? I can't read without them .
--- I _____ them on your bed , but they aren't there now .
A. Do you see , have seen B. Did you see, see C. Have you seen , saw D. Did you see , have seen
解答：选C。“你看到过我的眼镜吗？没有它，我什么都看不到。”“我刚才在床上看到过，但现在不在那里了。” 现在完成时have you seen 表示在这之前，你有没有见到我的眼镜；一般过去时saw表示刚刚看到过。现在完成时强调在此刻之前发生的事对现在的影响和作用，一般过去时强调过去发生过的事。

Answer 2

have you seen 表示你有没有见到眼镜，是否见到对现在是有影响的，（如果看到那人现在就不用找了嘛）saw表示我刚刚看到了，但是现在没有了，刚才的动作对现在已经没有影响，所以只用一般过去时

Answer 3

where are my glasses ? I put them on your bed.

追问

-my glasses ? I can't read without them . I -them on your bed , but they aren't there now . A. Do you see , have seen B. Did you see, see C. Have you seen , saw D. Did you see , have seen 选哪个？？？为什么??

追答

选C 强调造成的影响 用现在完成时
我刚刚看到他们在床上，一般过去时就可以