1.We teach (them) English. 2.My cousin (has) a new dictionary. 3.There are four (tomatoes) on the table. 4.My mother often (buys) some nice food on weekends.
解释:1.teach sb sth.
2.第三人称单数
3.以O结尾的名词复数形式是“不可吃的加s,可吃的加es.”
4.第三人称单数,表示一种经常性的动作。