—May I open the window to let in some fresh air?—        
#2993
A
Come on!
B
Take care!
C
Hold on!
D
Go ahead!
推荐题目
----Shall we go to a movie or go to the park?----Either one will do. _____
#1452
A
So what?
B
Have a great time!
C
Up to you.
D
I didn’t get it
----Tang is absent today. ---- _________ He is never late for work.
#2686
A
Go on.
B
How come?
C
Why not?
D
Never mind
 -It's nearly 10 o'clock. It's time for you to go to bed. -OK!     , Dad.
#22528
A
See you later
B
Good evening
C
Good night
D
Good-bye