Look! They ________ in the hallway.
#39029
A
run
B
ran
C
are running
D
will run
推荐题目
I_______ my homework when the door bell__________.
#39940
A
did, rang
B
was doing, was ringing
C
did, was ring
D
was doing, rang
Don’t talk here.  Grandparents ____.
#41785
A
sleep
B
is sleeping
C
are sleeping
D
sleeping
 Look at the ______ ! It’s ______ heavily now. 
#40121
A
rain, rain
B
raining, raining
C
rain, raining
D
raining, rain