题目内容：

单项选择
1、Tommy,do you know if Frank ______ to the theatre with us this sunday if it______?
—Sorry,I have no idea.
A、will go;is fine
B、goes;is fine
C、will go;is going to be fine
D、goes;will be fine
2、We'll go for a picnic if it ______this weekend.
A、will rain
B、rains
C、doesn't rain
D、won't rain
3、I want to know if Mr Green will come here tomorrow.
—If he ______,I'll tell you.
A、come
B、comes
C、will come