Really uncomfortable rainy season
I don't like rainy season. Most of the people do think so. Most of all, plants hate rain!!
A child was growing a plant outside of his house. However, there was a big storm with strong wind and rain. The child thought his plant would die if stayed outside. He was right. He quickly searched for some good rules to make sure that plants would be healthy.
1. We have to take it inside, but if you can't, you have to cover them with plastic bags so that they won't get wet.
2. Make sure that your plant is not needing water or sunshine by giving them attention.
3. If the plant looks like it will bend by the storm, give them some help. (you can use a straight stick, or branches and tie the plant simply.)
The child was ready to fight against the big storm with his beloved plant. After the storm, the child went out to see his plant. GREAT!!! It wasn't sick!!! After that he loved his plant more than before.

Julie: Most of people does think so.
Correct: Most of the people do think so.
Explanation: You refer to particular people who also do not like rainy season, so use the article the.

Julie: The child thought his plant will die if it is staying outside. And he was right.
Correct: The child thought his plant would die if stayed outside. He was right. 
Explanation: The past form of will is would.

Julie: He quickly searched for some good rules to make sure that plants are healthy.
Correct: He quickly searched for some good rules to make sure that plants would be healthy.
Explanation: The past form of will be is would be.

Julie: We have to take in inside, but if you can't, you have to give the plastic bags to make plant don't get wet.
Correct: We have to take it inside, but if you can't, you have to cover them with plastic bags so that they won't get wet.
Explanation: Take note how the sentence is formed.

Hello Julie! Good job! Just polish your grammar.:)