题目内容
辨认错误
Why notA haveB a rest after takingC so longD walk.
( )
Why not to askA your teacher if you don’t understand what you haveB learned.
Your teacher will certainly be pleasedC ifD you ask him several questions.
He is goodA at maths becauseB he is quite careful while doingC maths problems.That’s the reason why he does every problem rightlyD.
