The students how to do the experiment in class yesterday.
#45055
A
were taught
B
better
C
was taught
D
teach
推荐题目
–Our classroom _________ twice a day. So it is very clean.–It is important for us to do this.
#44640
A
is sweeping
B
is swept
C
sweeps
D
has swept
The earth is our home. It ______________ well.
#44581
A
must be protected
B
should protect
C
need protect
D
need protecting
The light bulb ______ by Edison in the middle of the 1780s.
#44649
A
is invented
B
was invented
C
invented
D
invent
—Mr. Black, may I leave now?—Well, if your work ________, you can go home.
#44700
A
finishes
B
is finished
C
has finished
D
will be finished
Mr. Chen has a loud voice. His voice can ______ clearly, even in that big classroom.
#44953
A
be heard
B
hear
C
be hearing
D
have heard