| A．Yes, there is. | B．Yes, they are. | C．No, there aren’t. |
| A．May I have a look at your book? | B．Is this your book? | C．Do you like the book? |
| A．Where are they going? | B．What are they going to do? | C．What are they doing? |
| A．are going to celebrate | B．is going to celebrate | C．are going to celebrating |
| A．rivers | B．mountains | C．desert |
| A．do | B．does | C．is |
| A．what | B．that | C．how |
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