273. You should make it a rule to leave things＿＿＿＿＿you can find them again

　 A. when　　　　　　　　 B.where　　　　　　 C.then　　　　　　 D.there

272. Few pleasures can equal＿＿＿＿＿of a cool drink on ahot day.

　 A. some　 　　　　　　B.any　　　　　　 C. that　　　　　　 D.those

271．The price＿＿＿＿＿,but I doubt whether it will remain so.

　 A. went down　　　 B.will go down　　　 C. has gone down　　　 D.was going down

270．－－Will you stay for lunch?

　　 －－Sorry,＿＿＿＿＿ ,My brother is coming to see me.

　 A. I mustn't　　　　　　　 B.I can't　　　 　　　C. I needn't　　　　　　 D.I won't

269．Robert is said abrcad. but I don't know what country he studied in.

　 A. to have studied　　　　 B. to study　　　

　 C．to be studying　　　 　D．to have been studying

267. ＿＿＿＿＿him and then try to copy whay he does．

　A. Mind　　　 B. Glance at　　　 C. Stare at　　　 D.Watch

268-----Idrove to Zhuhai for the air show last week.

　 -----Is that ＿＿＿＿＿ you had a few days off?

　 A. why　　　 B. when　　　 C. what　　　 D. where

266. ＿＿＿＿＿you've got a chance. you might as well make full use of it.

　 A. Now that　　　 B. After　　　　 C. Although　　　 D. As soon as

265. -----Alice. you feed ihe bird today,＿＿＿＿＿ ?

　 　-----But I fed it yesterday.

　 A. do you　　　 B. will you　　　 C. didn't you　　　 D. don't you

264. -----Are the new rules working？

　　 -----Yes，＿＿＿＿＿books are stolen.

　 A.Few　　　 B. More　　　 C.Some　　　 D.None

263. Paper money was in ______use in China when Marco Polo visited tbe country in ______thirteenth century.

　 A.the；不填　 　　　B.the；the　　　 C.不填；the　　　 D.不填；不填