1 . You won’t know the ____________ (important) of health until you lose it.

2 . This box only w__________ 2 kilograms. I can carry it easily.

3 . —你坐在哪儿?
—在教室的后边。
—________ do you ________?
—________ ________ ________ of the classroom.

4 . There are many apples on the chair. (改为单数句子)
There ________ apple on the chair.

5 . Don’t f________ to close the window when you leave the classroom.

6 . We have a school trip every year. I ________ (享受……的乐趣) it a lot.

7 . Daming likes to tell jokes and always makes people l________.

8 . Jane began ___________ (下象棋) when she was seven years old.

9 . Look! There is a teacher’s desk ________ our classroom and there is a big tree __________ the classroom.

A．in the front of; in the front of	B．in front of; in front of
C．in front of; in the front of	D．in the front of; in front of

10 . The blackboard is behind the teacher’s desk. (写出同义句)
The teacher’s desk is ________ ________ ________ the blackboard.