英语单选1.You can imagine how difficult it is to chew,but he see

英语单选
1.You can imagine how difficult it is to chew,but he seems_______every mouthful with great enjoyment.
A.eating B.to eat C.having eaten D.to have eaten
我选的是D.为什么不可以是过去的动作?
2.---Jim is unable to help you .Why not ask Jack to help you?
---He is______helpful than Jim,I'm afraid.
A.more B.any more C.not more D.no more
我选的C.not more不是不比..更..no more 和 not more有什么区别
3.In front of ______ remains of my old house,I took some pictures,which called up my childhood memories.
A.which B.the place C.where D.what
我选的C.what作宾语从句的主语吗?
4.Just turn to her.She has a(n)_________knowledge of computers.
A.wide B.deep C.abstract D.broad
我选的A.wide不可以形容知识面宽吗,和broad怎么区别?