Father is sleeping . You’d better __________ quiet .
#51035
A
to keep
B
keep
C
keeping
D
not keep
推荐题目
 -What did Mr. Green say to his son?      -He told him           .
#48417
A
didn't smoke
B
don't smoke
C
not to smoke
D
not smoke
The man went into the room, _____ rather strange. 
#50355
A
to look
B
looking
C
looked
D
and looking
My shoes are worn out.They  need_______.
#48610
A
to repair
B
be repaired
C
repaired
D
Repairing