You can ’t get in. The exam  _____for over 30 minutes. 
#36950
A
has been on
B
has begun
C
began
D
begins
推荐题目
He _____ play the piano since he was young. He is very famous now.
#41795
A
has could
B
has been able to
C
could
D
was able to
— Tommy, do you know if Frank ______ to the zoo this Sunday if it _______?— Sorry, I have no idea. 
#41968
A
will go; is fine
B
goes; is fine
C
will go; is going to be fine
D
goes; will be fine