问题
I don’t know if it ____ tomorrow. If it _____, we will go out for a picnic.
A:will rain; won’t rain
B:rains; doesn’t rain
C:rains; won’t rain
D:will rain; doesn’t rain;
B:rains; doesn’t rain
C:rains; won’t rain
D:will rain; doesn’t rain;
正确答案是：
