——Who       it be that is knocking at the door?——It       be Father, but I’m not sure. 
#85013
A
can; must
B
can; may
C
must; can
D
may; must
推荐题目
      is important for all of us       English loudly in the morning.
#47032
A
It; to read
B
That; to read
C
It; reading
D
That; reading
____ be careful when crossing the street!
#85481
A
Must
B
Should
C
Ought to
D
Do
It is __________ you do rather than __________ you say __________ matters.
#84690
A
what; what; that
B
that; what; that
C
what; that; what
D
what; that; that
It was on October 1st _____ new China was founded.
#85021
A
which    
B
that     
C
when
D
as