What ________ if there ______ no water or air on the earth?
#39823
A
happen, is
B
will happen, is
C
will happen, will be
D
happen ,are
推荐题目
The head teacher with his students ____ the park if it __________tomorrow.
#41637
A
is going to; doesn't rain
B
are going co; won’t rain
C
is going to; won't rain
D
are going to; doesn't rain
---May I go out with you tomorrow?  ---If your job ______by then.
#42611
A
has been finished
B
finish 
C
will be finished
D
will finish
-When should I hand in my paper?  -It         after class.
#39356
A
must be handed in
B
is handed in
C
was handed in
D
will hand in