Question

she doesn't know_____and asks us for help. A.what she can do it B.what to do it C.how to do D.

she doesn't know_____and asks us for help. A.what she can do it B.what to do it C.how to do D.how to do it 麻烦各位亲帮我讲一下这四个选项的区别，最好可以后天大考了，急啊!

Answer 1

答案很明显选D，这种题我做过不下千遍
【解析】
A选项，应该是what
she
can
do，即把it去掉。其中what
是句子中的宾语，只是句子倒装了，可以把它理解为she
can
do
what，若是加上it，变成she
can
do
what
it，明显错误。
B选项，应该是what
to
do。你只要记住what
to
do(注意后面没it)跟how
to
do
it(后面有it)这两个固定搭配就好，不必深究太多，死记这两个东西，以后还会见到的。
C选项，参考B选项
D选项，正确答案
楼主只要牢记what
to
do跟how
to
do
it，搞清楚哪个要加it，这种题目以后就可以游刃有余了