The Dongying-Hainan airline         for about 5 months. I have taken the flights three times.
#38883
A
is open
B
has opened
C
has been open
D
has been opened
推荐题目
The film______for ten minutes when we got to the cinema.
#37520
A
has alrealy been on
B
has already begun
C
had already been on
D
had already begun
Our teacher told us that light ______ faster than sound.
#40003
A
travels
B
travelled
C
travel
D
will travel
---Could you tell me when your father___back?---I’m not sure now. but when he ___next week, I’ll tell you.
#41852
A
return, comes
B
will come, returns
C
comes, will return
D
will return, comes