681. You should learn these words by heart. 你应该把这些词背熟。

682. Could I have those two tickets, please?这两张票给我行不行?

683. He has to take care of his sick mother. 他得照顾他生病的母亲。

684. He hired a workman to repair the fence.他雇用了一个工人修理围墙。

685. I can’t make this machine run properly.我无法使这部机器正常运转。

686. I don’t know if I’ll have the patience.我不知道我有没有耐心。

687. I don’t like what you are saying.我不喜欢你说的话。

688. I fell in love with her at first sight.我第一眼见到她就爱上了她。

689. I have just heard from my sister, Mary.我刚收到我妹妹玛丽的一封信。

690. If you would only try, you could do it.只要你肯尝试，你一定能做这件事。

691. It is no use learning without thinking.学而不思则惘。

692. It was a lazy, breezy autumn afternoon.这是一个懒散的，起风的秋日下午。

693. Jack is the strongest boy in the class.杰克是全班最强壮的男孩。

694. Please fetch a chair from another room.请到别的房间取一把椅子。

695. The doctor began to operate on the boy.医生开始给那个男孩动手术。

696. The doctor is taking my blood pressure.医生正给我量血压。

697. The machines will not operate properly.那些机器不能正常运转。

698. The students declared against cheating.学生们表示反对作弊。

699. There is hope so long as he is with us. 只要他在就有希望。

700. He talks as if he were the head of the office.他说话的口气像办公室主任似的。