As many people do, you often pretend ________ work when actually you are just wasting time online.
A：doing
B：to do
C：to be doing
D：to have done
国民收入（%）
商业零售（%）
工业产值（%）
公有制经济
92.9
95.8
100
私有制经济
7.1
4.2
0
我国的内海有（ ）
— Lily is about the competition.
— Yes, she is afraid that she won't win.
