You waste much time______pig flu.on the internet..
#84344
A
to know
B
knowing
C
know
D
to be known
Listen to the two girls by the window. What language ___________?
#84362
A
did they speak
B
were they speaking
C
are they speaking
D
have they been speaking
We will debate the subject_____ late when we have enough time.
#84363
A
in vain
B
at length
C
at last
D
in force
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