| A．Look at that little pig. | B．This is a little pig. |
| A．What's that? | B．Where's my pencil? |
| A．I don't know. | B．Sorry. |
| A．How many apples? | B．How are the apples? |
| A．This is my mother. |
| B．My mother is there. |
| A．Is he a doctor? | B．Are you a doctor? |
| A．What's that? | B．Where's my school bag? |
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