Rewrite the sentences (按要求改写句子，每空一词)
1. Be quick, please. (否定句)
_________ be quick, please.
2. The Chens are having a holiday on the beach.
What _____ the Chens _____ on the beach?
3. Your father work in a post office. (用 bakery 改成选择疑问句)
_______ your father_______  in a post office _______ a bakery?
4. There is some milk in the bottle. (否定句)
There ________ milk in the bottle. 
5. These flowers are purple and pink (对划线部分提问)
______________ are these flowers?

--- __________ did you buy the new bag?
--- Last Monday.

A．Where

B．How

C．When

－______?－It’s here.

A．What’s this	B．Where’s the teacher?
C．Where’s the library	D．Is it here

_______ is she ?
---She is behind the tree .

A．what	B．who
C．when	D．where

--- ____________   (   )
--- It’s a brown ball.

A．What colour is it?

B．What’s that?

C．Are you a robot?