Don’t kill your precious time chatting online all day long. It’s impossible for the lost time          ,you know.
#96441
A
to make up
B
making up
C
to be made up
D
being made up
推荐题目
Unless________ to speak, you should remain silent at the meeting. 
#94058
A
invited
B
inviting
C
being invited
D
having invited
The math problem seems very easy, but in fact it is very difficult_______.
#90069
A
to work out
B
being worked out
C
working out
D
to be worked out.
She woke up, ___ a Young Pioner standing by his bed smiling.
#98665
A
in finding
B
to find
C
finding
D
to have found