Maybe there will be a heavy rain.
同義句：
Perhaps it is going to rain heavily.
不明白可繼續(xù)提問,可要求是變?yōu)門here_________a heavy rain.There__might be_______a heavy rain.兩個空的話就這么填?？梢笫亲?yōu)門here_________a heavy rain.幾個空？至少應(yīng)該有兩個空吧。There__may be_______a heavy rain.或：There__might be_______a heavy rain.