根据所给情景，选择一个最佳答案补全对话。

(      )（1）Look           at the people .
A.on the lake.B.under the tree.
(      )（2）What is he doing?     He’s      .
A.playinga toy train.    B.taking pictures.
(      )（3）What are they doing?  They are     .
A.playing chess.   B.doing taijiquan.
(      )（4）What are you doing?
A.I’m making a cake.  B.I’m making noodles.
(      )（5）Can I have some bread?
A.Sorry, you can’t.B.No I can’t.
(      )（6）Do you want some dumplings? 
A.No,thank you .   B.No, you can