题目内容：

School cleaning day

Today is Saturday. It is our cleaning day. The pupils of our class are cleaning our classroom. Mary is cleaning the door. She is standing on a chair. Tom and some others are cleaning the windows. Some of us are sweeping the floor. Others are cleaning the desks and chairs. I am taking down the old pictures and putting up some new ones. Our teacher is in the classroom，too. She is helping us to put the desks and chairs in order.

1.What day is it today?

A. Sunday.   B. Saturday.

C. Monday   D. Friday.

2.The pupils are  ______

A. standing on a chair

B. cleaning the window

C. cleaning the desks

D. cleaning the classroom

3.The teacher is helping us to ______

A. put the desks and chairs in order

B. sweep the floor

C. clean the window

D. take down the pictures

4.Mary is  ______

A. cleaning the door

B. cleaning the windows

C. sweeping the floor

D. cleaning the desks and chairs

5.Why do the pupils come to school?

A. To study.

B. To clean the classroom.

C. To learn English.

D. To see their teacher.