--Be quiet! The children ____________ now. --Oh, sorry. 
#42391
A
sleep
B
slept
C
were sleeping
D
are sleeping
推荐题目
Look! Who ___________ on the blackboard?
#41779
A
writes
B
is writing
C
are writing
D
writing
My grandparents _________for fifty years and they are both quite healthy now.
#38397
A
marry
B
have been married
C
are married
D
have gotten married
  He will go to the mountains with his parents if it       next Sunday.
#36490
A
won’t rain
B
doesn’t rain
C
isn’t rain
D
will rain
­—I think there ____more students in our school next term.—Well, I think so.
#41775
A
will be
B
is going to have
C
will have
D
are going to have