________ 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
_______different life today it is from ______was fifty years ago!
#66331
A
What a; what
B
How ; what
C
What; what
D
What a; how
  ________ it is to have a swim in a pool on a hot summer.
#65877
A
How fun
B
How funny
C
What fun
D
What funny
—— What sport do you like best? —— Springboard diving.____ to dive into water from high board! 
#66287
A
What a fun is it
B
How fun it is
C
How a fun is it
D
What fun it is
_______ great picture! Who painted it? 
#65970
A
How
B
What
C
How a
D
What a