1．在老师的帮助下尽力处理好我们在学习中遇到的每一个挑战是我们的职责。

It's our duty                each challenge in our education           our teachers．

2．队员们害怕输掉比赛。

The players                                 the game．

3．他对学习不感兴趣，并且经常与警察发生冲突。

He wasn't                          and he often got into trouble with the police．

4．我不知道如何回答这个问题。

I don’t know             the question?