How do you say

There will be a rainstorm sometime in the next three months in Hangzhou.

..in Chinese?

未来三个月里,杭州将有一次降雨过程。

wèi lái sān gè yuè lǐ , háng zhōu jiāng yǒu yī cì jiàng yǔ guò chéng 。

How do you say "I bought a new sofa, it fits into the living room perfectly." in Chinese?