The teacher often tells us not to play computer games.中为什么要用not,而不用don`t?

the boy stopped_____(talk) and______(listen)to te teacher. The teacher often rides to school .还是The teacher often ride to school? 一个简单的同义句转换Tim often causes the teacher a problemTim often ( )the teacher( )( ) The teacher often asks us ___(read) in the morning our teacher often asks us( )about the future(think) The teacher often tells Tom____(not watch) too much TV Our teacher often keeps us (read) English in the morning. the teacher often r_____the boy to his father The teacher often talks to his student同义句 求一句英语句型the students were busy with their homework when the teacher came in.保持原意the students were_________ __________their homework wen te teacher came in. The teacher sent over the same point so often that the students were bored. Our teacher often gives prizes the beOur teacher often gives prizes the best students.A.of B.to C.for D.at.这道题到底选B还是C, the children their teacher often ________ for half an hour in the morning(run) The teacher often meaks him __ (stand) in the class空里填啥哈? The teacher often makes him ____(stand) in front of the class. our teacher often lets us listen to the t( )of the texts翻译啊 Our teacher often stands (in the front of the class.)就括号部分提问 What does the teacher often tell the boys to do 改为被动语态