-----Can you go to the mountains with me , Allan?------Sorry, I can’t . I _________  for the English test now.
#39758
A
study
B
am studying
C
studied
D
studies
推荐题目
---How often ___________ the Olympics _____________? ---Every four years. 
#42174
A
is, taken place
B
is, hold
C
does, hold
D
does, take place
While the alien ________ the museum, the boy called the TV station.
#37872
A
visiting
B
was visiting
C
visited
D
visit