295. All of _______ sudden , I caught ______ sight of my English teacher in the crowd , smiling to me . I calmed down .

　　 A. a ; 不填　 B. a ; a　 C. 不填 ; a　　 D. 不填 ； 不填

294. The Smiths were not rich , but they ______ to send their two daughters to collages .

　　 A. tried　　 B. managed　　 C. attempted　　 D. failed

293. Violent crime is one of the most serious ______ of modern society .

　　 A. illnesses　　 B. diseases　　 C. sickness　　 D. pains

292. In February 2003 some people got ______ with a strange disease and died eith in a month .

　　 A. infect　 B. infecting　　 C. infected　　 D. to be infected

291. She uses wit with ______ effect .

　　 A. deal　　 B. deadness　 C. deadly　　 D. dying

290. --- What about the protection ?

　　 --- Let’s keep the surface ______ dirty by putting a cover over it .

　 A. far from　 B. free from　　 C. apart from　　 D. away from

289. The team _____ its lead in the second half .

　　 A. recovered　　 B. restored　　 C. recuperated　　 D. remained

288. In the history of Chinese revolutionary , Taierzhuang Battle was a ______ battle in which both sides suffered heavy losses .

　　　 A. fierce　　 B. strong　　 C. hot　　 D. peaceful

287. ---Tom , please don’t watch too much TV . It’s a waste of time . How about doing something ________ instead ?

　 --- OK , mom , I’ll turn off it right now .

　 A. comfortable　　 B. interesting　　 C. meaningful　　 D. good

286. _______ such heavy pollution already , it may now be too late to clean up the river .

　　 A. Having suffered　 B. Suffering　　 C. To suffer　　 D. Suffered