it is hard() sth.a.to do b.do c.doing

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it is hard() sth.a.to do b.do c.doing

a

应该是选a吧,错了不怪我

选a,过程:请记住,前面给it,后面填to do

A

a

1

A

A hard to do 固定搭配

a

a

a It is +形容词+to do 固定句式

A, 这都是语法应该把它记下哈

a 句式:It is +adj(形容词)+to do ath

a

a,be hard to do.
for example.it's hard to do this job.

it is+adj+(for sb)+to do sth (对某人来说)做某事怎样