| A．at | B．for |
| A．pear | B．pears |
| A．谢谢。 | B．对不起。 |
( )| A．This is a bed. | B．This is a door. |
( )| A．These are my pens. | B．These are my pencils. |
( )| A．Close the book, please. | B．Open the book, please. |
( )| A．Clean the window, please. | B．Clean the door, please. |
( )| A．apple | B．pear | C．orange |
( )| A．door | B．window | C．bed |
( )| A．open | B．close | C．clean |
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