Look! They ________ in the hallway.
#39029
A
run
B
ran
C
are running
D
will run
推荐题目
The mobile phone has influenced people's life a lot since it __________.
#36751
A
invents
B
invented
C
is invented
D
was invented
Ssh, please be quiet. The baby _______ .
#40226
A
sleep
B
sleeps
C
is sleepping
D
is sleeping