—Hi, Johnson, any idea where Susan is?  —It’s class time, so she          in the classroom now.
#87475
A
can be
B
must have been
C
might have been
D
should be
推荐题目
Without electricity human life __________ quite different today. 
#87677
A
is
B
will be
C
would have been
D
would be
You _____ an A on your composition, but there were some spelling mistakes.
#87445
A
should receive
B
could have received
C
would receive
D
must have received
Were it not for the debt, we ______a happy life:
#90303
A
are living
B
would live
C
were living
D
will live