| A．It’s Friday. |
| B．Let’s go home. |
| A．Let’s cleaning our classroom. |
| B．Let’s clean our classroom. |
| A．Yang Ming is standing on a chair. |
| B．Yang Ming is stand on a chair. |
| A．Lily is cleaning the desks. |
| B．Lily is cleaning the chairs. |
| A．Lily is cleaning the desks. |
| B．Lily is cleaning the chairs. |
| A．Well done! |
| B．Well do! |
| A．Please close the lights. |
| B．Please turn off the lights. |
| A．All right. |
| B．All no. |
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