A、
    

a	b	c	d
2	1	3	4

B、
    

1	2	3	4
d	a	b	c

C、1. Sit down，please.
    2. Close the window，please.
    3. Look at the blackboard，please.
    4. Close the door，please.
    5. Come in，please.
    D、
    

1	2	3	4
d	b	c	a

    E、
    1. book　2. window　3. blackboard　4. Door
    Unit1補充習(xí)題聽力原文
    A、1. —Sit down，please，Liu Tao.
    —Yes，Miss Li.
    2. —Close the book，please.
    —Yes，Mr Green.
    3. —Look at the blackboard，Helen.
    —Yes，Mr Green.
    4. —I'm sorry，Mr Green.
    —Come in，please，Su Hai.
     
    B、1. Mr Robot，please close my book.
    2. Close the window，please，Mr Robot.
    3. Mr Robot，open the door，please.
    4. Please open my book，Mr Robot.