she has no paper ________.

题目

she has no paper ________.
a.to write
b.writing on
c.to write on
选C对吗,to write on这里的on 能去掉吗,
这是什么结构
为什么不能去介词呢

答案

是选C.举一反三：She has a room to live in.（live不及物,要加in 即live in a room） He has a lot of meat to eat.(eat及物,后面不要加介词 即eat meat)
把语序换一下就是做这种题的诀窍!