it is a bad day.it --------------(rains /rainy) hard.填哪个单词,为啥

问题描述:

it is a bad day.it --------------(rains /rainy) hard.填哪个单词,为啥

rains

it + 动词第三人称单数
如果用 rainy 得用: be rainy, 如: It's rainy today.


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