296.　 Sports and games are very ___________(有价值)to people's health.

295.　 He hurt his leg badly, so the doctor had to have an __________(手术)on him.

294.　 AS we all know, the _________(最喜欢)food of Americans is hamburger.

293.　 Elementary____________(教育)is very important to every child.

292.　 Marx was forced to leave his motherland for the ______________(政治)reason.

291.　 Mike will never forget his happy ___________(童年)he spent in the countryside.

290.　 _____(判断)from what he said, he must be a teacher.

289.　 She was___________(感动震惊)to hear what had happened .

288.　 She is _____________(心甘情愿的)to help others.

287.　 I____________(宣布)that Willing had been elected.