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______ at the door before entering please.
#66016
A
Knocked
B
Knock
C
Knocking
D
To knock
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____________ make so much noise. The students are taking an exam.
#59433
A
Isn't
B
Doesn’t
C
Don’t
D
Haven’t
Please do me a favor, —      the box upstairs.
#66093
A
carry
B
to carry
C
carrying
D
having carried
 --- Sorry I’m late.--- _______ tell me the bus broke down again!
#59344
A
Never to
B
Not
C
Don’t
D
No
Don’t ___ shy. Everyone may make mistakes at the beginning.
#59396
A
am
B
is
C
be
D
are
.If the car won’t start, _____ it.
#66315
A
try push
B
try pushing
C
to try pushing
D
to try to push