________ at the door before you enter my room, please.
#66075
A
Knock
B
Knocking
C
Knocked
D
To knock
______ it is to listen to music when you are free. 
#66076
A
What fun
B
What a fun
C
How fun
D
How funny
_______ they may have, the CEO of the corporation calls on all the staff to gather their courage to strive it.
#66086
A
What a serious problem
B
However a serious problem
C
How serious a problem
D
Whatever a serious problem
_______ 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
Please do me a favor, —      the box upstairs. 
#66093
A
carry
B
to carry
C
carrying
D
having carried
What _______ it will be when you _______ on the white sand in the warm sun!
#66096
A
funny; lie
B
fun; lie
C
a fun; lie
D
funny; lay
______ it is to have a picnic in the hills on such a nice day!
#66098
A
What a fun
B
How fun
C
What fun
D
How a fun
___________ and I’ll get the work finished.
#66100
A
Have one more hour
B
One more hour
C
Given one more hour
D
If I have one more hour
_______ blood if you can and many lives will be saved.
#66103
A
Giving
B
Give
C
Given
D
To give
Keep practicing and you _____ your English.
#66108
A
improve
B
will improve
C
improved
D
were improving
     , and the problem will be worked out.
#66110
A
If you have a bit more effort
B
Having a little effort
C
A bit more effort
D
There being a little effort
_____, I’m sure, and you’ll find her friendly and easy-going.
#66114
A
If you have a talk with Sara
B
Having a talk with Sara
C
Have a talk with Sara
D
After having a talk with Sara
祈使句
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