1.Tomwasadiligentboy.He()gotoschoolthoughitwasraininghard.A.wasabletoB.couldC.couldn'tD.wasn'tableto2.()lgotobackbeforelunch?No,ldon'tthinkyou().A.Need…mustB.do…needtoC.must…havetoD.may…oughtto3.Theteache

Question

1.Tom was a diligent boy.He () go to school though it was raining hard.A.was able to B.could C.couldn't D.wasn't able to 2.()l go to back before lunch?No,l don't think you ().A.Need…must B.do…need to C.must…have to D.may…ought to 3.The teacher () do all the exercises,but a pupil().A.needn't…must B.may not…must C.needn't…needn't D.can't…must

Answer 1

diligent 勤奋的can 和be able to 都可以表示能力.can泛指一般的能力,而且只有两种形式,即:can,could．be able to 则主要指具体做到了某件事的能力,其形式主要是靠be 发生变化,所以选A,MUST表一定,我一定要在午饭前返回吗,所以后面是不必,选C,PUPIL学生,学生必须做,而老师不必,故选A,多指教.