| A．am cleaning | B．cleaning | C．is cleaning | D．to clean |
| A．When did you have lunch? | B．Where did you have lunch? |
| C．Have you had your lunch? | |
| A．aren’t | B．are | C．is | D．isn’t |
| A．What are you doing? | B．What are you do? |
| A．am | B．is | C．are |
| A．are | B．is | C．am |
| A．What are you doing? | B．What do you do? |
| C．What do I need? |
| A．I like a white bike. | B．I have a white bike. |
| C．There is a white bike in my house. |
| A．is | B．are | C．was | D．were |
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