30． Mr Henry didn’t exchange seats because

A． there was no man opposite to him

B． he had fallen asleep on the train ．

C． he hadn’t known he had been able to do so

D． somebody sat opposite to him

[单选题]28， Mr Henry always went to the town on foot because___________A． the town was near to his villageB． he had no money to take a busC． he was afraid to take a busD． there is no bus there

Henry is in charge of the office ____ Mr Smith is away.Henryisinchargeoftheoff

[单选题]30． Mike can't mend _______ ．A． his kiteB． his shoes and kiteC． his chairD． his door

[问答题]Mr. Smith knew Jack didn't look at the others because he was nervous.

White _____ at 8:30 for the meeting, but he didn’t show up.A. should have arrive

[单选题]I didn’t answerthe phone _____I didn’t hear it ring.A.ifB.unlessC.althoughD

[单选题]30．A．playB．playingC．playsD．plaies

[单选题]30．A．mountainsB．citiesC．riversD．seas

[单选题]30．A．alreadyB．yetC．everD．never

[单选题]30． The sweater isA．bigB．greenC．￥30D．A，B and C