_______ how to do the homework, I went to ask my teacher for help.  
#97440
A
Not to know 
B
Not knowing
C
Knowing not 
D
Not known
推荐题目
Mr. Green told us _______ talk loudly in class.
#96865
A
didn’t
B
don’t
C
not to
D
to not
With a long report ________, I have to work really hard this week .
#96902
A
to write
B
written
C
writing
D
to be written
The sun began to rise in the sky, ________ the mountain in golden light.
#91116
A
bathed
B
bathing
C
to have bathed
D
have bathed
The rules of our school don’t allow ______ at school. That is to say, Nobody is allowed _____ here.
#98553
A
to smoke; to
B
smoking; smoking
C
to smoke; smoking
D
smoking; to smoke
 The audience ______ before TV sets are listening to Yi Zhongtian’s stories with their eyes _____ upon him.
#90587
A
seating;fixing
B
seated;fixing
C
seated;fixed
D
seating;fixed