251. People try to avoid public transportation delays by using their own cars, and this _____ creates more problems.

　　 A. after all　　　　　　　　　　 B. once again　　　　　　　　 C. in case　　　　　　　　　　　　　　 D. in turn

250. She’s already got her air ticket and will go to Canada _____.

　　 A. little by little　　　　　　 B. bit by bit　　　　　　　　　 C. by and by　　　　　　　　 D. step by step

249. Don’t all stand up at one time! _____, please.

　　 A. Each at one time　　　　　　　 B. One by one time　　　　　　　 C. One at a time　　　　　　 D. One for each time

248. I don’t like this pair of gloves. Will you show me _____.

　　 A. another　　　　　　　　　　 B. the others　　　　　　　　 C. some others　　　　　　　　　　 D. other ones

247. Some trees are cut down each year and _____ are left to grow even taller.

　　 A. the rest　　　　　　　　　　 B. a rest　　　　　　　　　　　 C. rest of them　　　　　　　　　　 D. a rest of them

246. John failed the exam chiefly because of his laziness, but it was different _____ of Ann, she was ill.

　　 A. in case　　　　　　　　　　　　　　 B. in the event　　　　　　　　　　 C. in the case　　　　　　　　 D. because

245. I went to bed very late that night, _____, early the next morning.

　　 A. at least　　　　　　　　　　 B. in a word　　　　　　　　 C. or rather　　　　　　　　　 D. at most

244. On New Year’s Eve, New York City holds an outdoor _____ which attracts a crowd of a million or more people.

　　 A. incident　　　　　　　　　 B. event　　　　　　　　　　　 C. case　　　　　　　　　　　　 D. affair

243. She is always ready to help people in trouble because she think it a _____.

　　 A. decision　　　　　　　　　 B. chance　　　　　　　　　　　　　　 C. pride　　　　　　　　　　　　 D. pleasure

242. These two areas are similar _____ they both have a high rainfall during this season.

　　 A. to that　　　　　　　　　　　 B. beside that　　　　　　　　 C. in that　　　　　　　　　　　 D. except that