505. I count you as one of my friends 我把你算作我的一个朋友。

504. He inspected the car for defects． 他详细检查车子有无效障。

503. He has been sick for three weeks． 他已经病了几周了。

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。