542. He struck his attacker on the ear． 他打了那个攻击者一耳光。

541. He invited me to dinner yesterday． 他昨天请我吃晚饭了。

540. He drives more carefully than you． 他开车比你小心。

539. Don"t pull the chairs about,boys! 不要把椅子拖来拖去，孩子们!

538. Come to see me whenever you like。 你可以随时来见我。

537. Close the door after you，please． 请随手关门。

536. But who will do all the house work? 但是这些家务活谁来做呢?

535. But I plan to weed the yard today. 我计划今天除院子里的草。

534. Beyond all questions you are right. 毫无疑问，你是对的。

533. You"re suffering from an allergy? 你过敏吗?