初中英语题,麻烦各位在解答时说明一下原因

初中英语题,麻烦各位在解答时说明一下原因
There ______ a sports meeting in our school next month.(请说明原因）
A.is going to have B.are going to be C.will have D.is going to be
I’ll write to you as soon as I ________ Beijing
A.will get to B.gets to C.are going to D.get to
It if _______ tomorrow,we won't start the sports meeting
A. rain B.rains C.will rain D.rained
Would you like some orange?
______(仅仅） a little
We don't often hear from them, but we often send______ to each other by mobile phone
A.information B.newspaper C.advice D.messages
Now,I ______another song foe you.
A.sing B.am going to sing C.sang D.have sing
I'll tell her about it when she _______back
A.come B.will come C.came D.comes
Autumn is a busy season. And the days _____ shorter
A. get B.gets C.got D.get to
Where _____you_____ lunch just now?
At school
A.did;have B.did;had C.have;had D.shall;have
You mustn't tell it to anybody _______ It's a secrst
A.else B.other C.another D.the better