1、三组讲解三组讲解n1.It was quiet _ those big trucks started coming through the town.nA.before nB.after nC.until nD.unless n2.It seemed only seconds _ the boy finished washing his face.nA.when nB.before nC.after nD.even if n3.Hardly had he reached the school gate _ the bell rang.nA.while nB.when nC.as nD.as s
2、oon asn4.We were told that we should follow the main road _ we reached the central railway station.nA.whenever nB.until nC.while nD.wherever n5.I recognized you _ I saw you at the airport.nA.the moment nB.while nC.after nD.oncen6.He was about to go to bed _ the doorbell rang.nA.while nB.as nC.before
3、 nD.whenn7._I listen to your advice,I get into trouble.nA.Every time nB.When nC.While nD.Until n8._ John was watching TV,his wife was cooking.nA.As nB.As soon as nC.While nD.Tilln9.The children ran away from the orchard(果园)_ they saw the guard.nA.the moment nB.after nC.before nD.asn10.No sooner had
4、I arrived home _ it began to rain.nA.when nB.while nC.as nD.thann11.Several weeks had gone by _ I realized the painting was missing.nA.as nB.before nC.since nD.when n12.It _ long before we _ the result of the experiment.nA.will not be;will know nB.is;will know nC.will not be;know nD.is;known13.What
5、was the party like?-Wonderful.Its years _ I enjoyed myself so much.nA.after nB.before nC.when nD.sincen14.The new secretary is supposed to report to the manager as soon as she_.nA.will arrive nB.arrives nC.is going to arrive nD.is arrivingn15._ got into the room _ the telephone rang.nA.He hardly had
6、;then nB.Hardly had he;when nC.He had not;then nD.Not had he;whenn16.No sooner had he finished his talk _ he was surrounded by the workers.nA.as nB.then nC.than nD.whenn17.Did you remember to give Mary the money you owed her?-Yes,I gave it to her _ I saw her.nA.while nB.the moment nC.suddenly nD.onc
7、en18.I thought her nice and honest _ I met her.nA.first time nB.for the first time nC.the first time nD.by the first timen19.He will have learned English for eight years by the time he _ from the university next year.nA.will graduate nB.will have graduated nC.graduates nD.is to graduaten20.The moment the 28th Olympic Games _ open,the whole world cheered.nA.declared nB.have been declared nC.have declared nD.were declared
