请把下面的短语、句子翻译成英语：
发生 __________________
铃响了。 _______________________
使我们高兴 _____________________
跟......保持联系 ___________________
成功地做了某事__________________
取得进步 ______________________
到目前为止 _____________________
辛亏 ______________________
数以百计的 _____________________
人口真多啊！_______________________
What is the most important thing in the world？I think it is health．You can take away our money，house，car，or even our clothes and we can survive （生存）．But （112） if our health is taken away ， we will surely die．This is why we always try to eat in a healthy way and exercise regularly．
（113） Taking exercise every day helps us build a strong boby．We should do sports for half an hour or forty minutes every morning or every evening，such as going for a walk，playing basketball or football，swimming and so on．
To keep healthy，I have another idea：don't overwork．Too much work will be bad for you．
112．
113．
你能告诉我他怎么了？
到上英语课的时间了！
他年龄够大了，可以上学了．
请遵守学校的规章制度．