1.Our maths teacher always tells us _______ make the same mistake again.
A.don’t B.not C.to not D.not to
选D,
词组tell sb to do sth,否定是tell sb not to do sth,因此选D
2.Doing to much homeworkreally makes the students feel tired.(找出动词不定式并且写出它在句子中担任的成分)
Doing to much homework,做主语动词不定式难道不是make吗？make用在陈述句中不是要把动词不定式的to省略吗？动词不定式不能充当谓语哦，（因为动词不定式和现在分词，过去分词同属于非谓语动词，故不能充当谓语）你能有自己思考很好！