Our classroom          by us every day!
#38468
A
is cleaning
B
has cleaned
C
must clean
D
is cleaned
推荐题目
.Keep doing it, and you ______healthy.
#37425
A
being
B
were
C
are
D
will be
I won’t leave my office until my work       .
#39977
A
finishes
B
will be finished
C
is finished
D
will finish
 The film _________________ for half an hour when she got to the cinema.
#38408
A
has been over
B
has finished
C
had been over
D
had finished
Our teacher told us that light ______ faster than sound.
#40003
A
travels
B
travelled
C
travel
D
will travel