根据中文意思完成句子。
1. 李平一回到家就开始做作业。
Li Ping begins to do his homework ________ he comes back home.
2. 我们经常乘高铁或公共汽车去北京。
We often go to Beijing ________ by sky train ________ by bus.
3. 郭明义在他的生活中总是尽力帮助别人。
Guo Mingyi always helps others ________ in his life.
4. 不要害怕犯错误,因为没有人总是对的。
________ because nobody is right all the time.
5. “让子弹飞”非常有趣,我和我朋友都看过两遍了。
"Let the bullet fly" is ________ it twice.