502. You know what I"m talking about. 我想你知道我在说什么。

501. You"d better look before you leap． 你最好三思而后行。

500. What about having a pizza first? 先吃点比萨饼怎么样?

499. We get to London this afternoon． 我们是今天下午到达伦敦的。

498. There are many stars in the sky． 天上有很多星星。

497. She has been collecting stamps． 她一直收集邮票。

496. My parents want me to go abroad． 我父母想让我出国。

495. Most games cost about that much． 大部分游戏差不多都是这个价钱。

494. Let"s watch TV with a candle on． 咱们点上蜡烛看电视吧。

493. It"s time to tell her the truth． 是该告诉她真相的时候了。