275. I"ll just play it by ear． 我到时随机应变。

274. I walked across the park． 我穿过了公园。

273. I suppose you dance much． 我想你常常跳舞吧。

272. I heard some one laughing. 我听见有人在笑。

271. I have the right to know. 我有权知道。

270. I do want to see him now． 我现在确实很想去见他。

269. I can"t afford a new car． 我买不起一部新车。

268. I am so sorry about this. 对此我非常抱歉(遗憾)。

267. He is physically mature． 他身体己发育成熟。

266. He grasped both my hands. 他紧握住我的双手。