not much ____

答案选A。
如：
I don't have much homework to do.
I don't have much money to buy these things

not much to do
这是动词不定式作定语，与前面的词构成动宾关系。
要论权威，我是英语老师哦。

选A：to do
我可是英语科
不对的话我认了

A to do