Do let your mother know all the truth,she appears__everything.( )

问题描述:

Do let your mother know all the truth,she appears__everything.( )
A.to tell B.to be told C.to be telling D.to have been told
do let是什么句式,这是个什么语法?

是强调句式,一般用法:DO + 动词原形,表示对该动作的强调.
比如:I do give you some money.我肯定会给你一些钱.