选择词组填空，注意形式变化，有一个是多余的.
in history; teach; compare their kids with; if; argue with； while
1Teachers always complain about ___________tired kids in the classroom.
2Parents are always ____________________________ other children.
3People often remember the news of important events _______________________.
4 I don’t want to __________________ my best friend.
5 _________________ I was watching TV, my mother was cooking supper.