If you can’t see the words written on the blackboard very well,maybe you need ___.B.to have your eyes examined D to be examined your eyes不是用need to be done吗?
问题描述：
If you can’t see the words written on the blackboard very well,maybe you need ___.
B.to have your eyes examined D to be examined your eyes
不是用need to be done吗?
答
答案是 B. to have your eyes examined
have sth done 句型 过去分词作宾补 使某事被做
选项D to be examined your eyes因为逻辑主语是人 应该用主动形式 to examine your eyes.
不是用need to be done除非主语 是 物 ，是被动关系 才可以 用
如 your eyes need to be examined
答
答案选b,have sth done是固定用法,让某事被做的意思,而D选项里面,因为主语是you,所以不能直接用examine的被动语态,如果主语是your eyes,那就可以用need to be eamined.