mixed - mixed school 收男女生的混合学校(区别于男校或女校)
less - 西蒙的橙汁比我的少,比较级
worse - 他的爷爷今早病更重了,比较级
tasty - 餐馆的菜很好吃,形容词
unpopular - 歌手不受欢迎了,歌也不受欢迎了,unpopular 不受欢迎的
the most interesting - 哪门课最有趣?三个中选一,是最高级
travels - 第三人称单数
to practice playing - spend some time to do something, practice doing something
chatting - have a great/good time doing something
Taking - 动名词形式,和后面的walking相对应
are having - “安静!学生们正在考试”,现在进行时
to get - 怎么去医院,how to do something
not to watch - ask somebody (not) to do something
如果帮到你,请记得采纳,谢谢!