Question

“Would you ________ please this?” the man said to him.

1. A.
   not doing
2. B.
   not to do
3. C.
   not do
4. D.
   don't do

Answer 1

C
“please”后面应跟不带“to”的动词不定式，构成词语“please do sth.”，否定式为：please not do sth.。故正确答案为C。