题文
---____?
---Three.
| A．What can you see in the sky? | B．Is there a plane in the sky? |
| C．How many planes are there? | D．Where is the plane? |
---____?
---Three.
| A．What can you see in the sky? | B．Is there a plane in the sky? |
| C．How many planes are there? | D．Where is the plane? |
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