Becky took a photo of her friends while they _________ computer games.
#38014
A
play
B
are playing
C
were playing
D
have played
推荐题目
—Where is Jim? —He            home since last week.
#37437
A
has left
B
has gone away from
C
left
D
has been away from
Our country _______ a lot in the last fifty years. 
#38761
A
will change
B
changed
C
changes
D
has changed