翻译句子。

1. 你不在时他们表现很不好。

    They _________________ when you were not here.

2. 我认为垃圾食品不仅仅有害健康。

    I think _________________ bad for our health.

3. 今天早上我撞上了我的班主任。

    I _________________ my head teacher this morning.

4. 最后妈妈说服我去上学。

    In the end, my mother _________________ go to school.

5. 暑假过后，我增重很多。

    I've _______________ after the summer holiday.