— Tom wants to know if you will have a picnic tomorrow.— Yes, but if it_______, we'll play chess instead.
A：will rain
B：is raining
C：rains
There is _________ in today's newspaper. It's boring.
下列关于我国民族分布特点的叙述，正确的是( )
解决城市交通堵塞问题的根本出路在于（ ）
