✔ 最佳答案
Other classmates were LAUGHING. Luckily the floor was sane, so (no THAT) I WAS NOT HURT. Then we used the rope to skip and I thought it was interesting. (You don't really need SO THAT) Mr Ma played with us. (Can't use NEXT in this occasion) Mr Ma (or HE) THEN (if that's what you mean) invited some teacherS TO SKIP (repetition of past tense - use ONE simple present to be followed by a past tense) with us, LIKE Ms Lau AND Ms Tse. SometimeS (it's always SOMETIMES - SOME TIME has a different meaning altogether) they fell (no DOWN) too. BY the end of this picnic, I WAS FEELING (past tense not so appropriate - use past continuous) happy and INTERESTED (INTEREST is a noun, INTERESTED is an adjective. By the way, I would think that EXCITED is a better word to be used here).
Hope it helps!