问题

With so many people ____ the Internet, it is difficult to see online movies at the same time. [ ]

A: surf
B: to surf
C: surfing
D: surfed

正确答案是：

同类题型

With Christmas ________, the children in my class are becoming more and more excited.

Ten minutes has been made full _______ of ________ the problem

The old man sitting opposite me cleared his throat as if________something.[ ]

There is no need _______ and it’s no use __________ there too early

I’llgive it to Jim as soon as I ____him tomorrow.