252.They_______the train until it disappeared in the distance.

　 A.saw　　　　　 B.watched　　　　 C.noticed　　　　 D.observed

251.Why do you want a new job_____you've got such a good one already?

　 A.that　　　 B.where　　　 C.which　　　 D.when

250.----Can I get you a cup of tea?

　　　 ------________.

　 A.That's very nice of you　　　　　 B.With pleasure　　　　 C.You can,please　　　　　　 D.Thank you for the tea

249.Professor White has written some short stories,but he is_______known for his plays.

　 A.the best　　　　 B.more　　　　　　 C.better　　　　　　 D.the most

248.-----When can I come for the photos?I need them tomorrow afternoon.

　 -----They_____be ready by 12:00.

　　　　　 B.should　　　　 C.might　　　　 D.need

247.Nobody noticed the thief slip into the house because the lights happened to________.

　 A.bi put up　　　　 B.give in　　　　 C.be turned on　　　　 D.go out

246.If I had________,I'd visit Europe,stopping at all the small interesting places.

　 A.a long enough holiday　　　　 B.an enough long holiday

　 c.a holiday enough long　　　　 D.a long holiday enough

245.------Nancy is not coming tonight.

　 　------But she_______!

　 A.promises　　　 B.promised　　　 C.will promise　　　 D.had promised

244.Dr,Black comes from either Oxford or Cambridge,I can't remember _____.

　 A.where　　　　　　 B.there　　　　　　 C.which　　　　　　 D.that

243.I hate _____when people talk with their mouths full.

　 A.it　　　　　　　 B.that　　　　　　 　C.these　　　　　　 D.them