--- _____ 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.