根据下面所给中文完成句子翻译。
31. 中国共产党于1921年7月1日成立。
The Communist Party of China ____________ on 1st of July, 1921.
32. 他成功地解出了这道数学题。
He ____________ the maths problem.
33. 健康比财富重要。
______________________
34. 不要在森林里生火。
Bob and Jim have been good friends (自从) they joined the same tennis team.
The singer is good at playing the (吉他) and making wonderful music.
Elephants have good memories. They never (忘记) the places with food and water.
Today we begin to learn the (第八) lesson. It is about delicious food.
There is something wrong with his teeth. He should go to the (牙医).