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________ if you want to do something, or you won’t be able to do it well.
#66250
A
To try your best
B
Trying you best
C
Try your best
D
Unless you try your best
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______ until the lights have turned to green.
#66190
A
Wait
B
To wait
C
Waiting
D
Having waited
The teacher often says, “ _____ late for class.”
#59341
A
Don’t
B
Don’t be
C
Not be
D
Doesn’t
______ this rock , please. I’m afraid some people can’t stand the noise!
#59362
A
Stopping
B
Stop
C
Stops
D
Stopped
________ great use the students are making of time ________!
#66159
A
How; studying
B
What; studying
C
How; to study
D
What; to study
   me again before coming.
#66222
A
Calling
B
To call
C
Do calling
D
Call