幫我改下呢篇文,吾該!______!(急...急...急)

Last Wednesday, some nurseS came to my school. IT IS BECAUSE THERE WAS THE injection for the studentS.
I knew that I will BE injected in the mornimg and i was so surprised(驚喜?你怕定係開心? if怕應該用scard/afraid, 我覺得最好唔要, or u may say I WAS SO SURPRISED THAT I WILL BE INJECTED IN THE MORNING). I was so AFRAID DUE TO it was very painful. At the FOURTH lesson, all primary one TO six STUDENTS went to the hall. Then the nurseS ARE READY TO DO THE injection. Suddenly,I heard THAT someone shouted loudly and cried, AND his CLASS teacher tried to comfort him. AT THE SAME TIME, one of my classmateS FELT not well and fainted. ATFER TAKING A REST, he felt better. FINALLY, I FOUND THAT IT IS NOT PAINFUL AFTER THE INJECTION AND I AM NOT AFRAID ANYMORE.

Last Wednesday, some (nurses) came to my school. Their aim was gave an injection for the (students).
I knew that I (would be) injected in the morning and i was so surprised. I was so apprehensive too because I was afraid it was very painful. (At the four hours lesson), all the (students) of primary one and six went to the hall.Then the nurse gave us an injection.Suddenly,I heard someone shouted loudly and cried.therefore, his teacher tried to comfort him. Also, one of my classmate was feeling not well and fainted. Later, he felt better. Also, the (nurse) gave me an injection. Luckily,I felt (no pain) and (alright),
I was so relax (afterward) .I thought I (didn't need) to afraid of it anymore.