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

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

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

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

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

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

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

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

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

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