— I can't see the blackboard very well. —Perhaps you need____.

如题所述

你好,正如你所说的
need
doing
是需要被做,但是它的主语多是物
【答案】d
【解析】perhaps
you
need
to
have
your
eyes
examined

主语

you
你,所以用
need
to
do
另外,后面有个词组时
have
sth
done
意思是:使某事被做,也表示被动
不知道这样说,你是否明白?
【另附】
need
的相关用法:
①need
to
do
需要做某事(主语多是
人)
i
need
to
water
the
flowers.
②need
doing
=
need
to
be
done
(主语多是
物)
the
flowers
need
watering.
=
the
flowers
need
to
be
watered.
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