A.Sit up, please. | B.Sit down, please. | C.Stand up, please. |
A. 向下 B. 站 C. 这 (那) 个,这 (那) 些 D. 向…… E. 向上 |
A.Point to the window. |
B.What's your name? |
C.I'm fine. |
A.at | B.to | C.of |
A.door | B.blackboard |
A.down | B.up | C.in |
A.Sit down. | B.Stand up. |
A.too | B.on | C.to |
A.Stand up, please. | B.Sit down, please. |