________ 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
推荐题目
_____ the milk and set a good example to the other children. 
#66201
A
Drink
B
To drink
C
Drinking
D
Having drinking
_______ the tower building,where you can see the whole city.
#66088
A
Standing on the top of
B
If you climb to
C
When you reach the top of
D
Get to the top of
 _______, or he’ll be more angry.
#66258
A
To tell you the truth
B
Telling him the truth
C
Told the truth
D
Tell him the truth
___ wonderful time they had on the Chidren’s Day!
#66263
A
What a
B
What
C
How a
D
How