注意以下表达方式中名词的复数形式
to be / make friends with(友好 / 交朋友)
to change places with (交换位置)
to make preparations for(为…作准备)
to give regards to(向…问好)
to make matters worse(把事情弄糟)
to hurt feelings(伤害感情)
to be all smiles(满脸堆笑)
to take sides (偏袒某方)
to have words with(吵架)
to burst into tears (突然哭了)
