Look, so many people are running out of the station. I wonder what ________.
#36284
A
is happened
B
was happening
C
is happening
D
had happened
推荐题目
Tina ________ England with her parents three years ago. 
#42063
A
visits
B
visited
C
will visit
D
has visited
---How’s your idea about your coming weekend? ---I ____ flying to Hainan, but my wife ____ Shenzhen.
#40654
A
thought about, decided
B
decided on, thought of
C
thought about, decided on
D
thought of, concentrate on
I ______ much progress in my English study since last term. 
#41652
A
make
B
will make
C
made
D
have made
 I ________ my hometown for a long time. I really miss it!
#38728
A
left
B
went away from
C
have left
D
have been away from
Look,so many passengers__________ with their smart phones on the underground.
#39026
A
played
B
will play
C
are playing
D
have played