【题目】选用方框内适当的句子，完成对话。
A.Look at the blackboard.
B.What color?
C.Would you like a hot dog?
D.What's this?
E.I'm sorry.
（1）—Don't drink here.
—________
（2）—________
—It's an English book.
（3）—________
—Yes, Mr Green.
（4）—________
—No, thank you.
（5）—________
—It's blue.
【答案】1.E 2.D 3.A 4.C 5.B
【解析】
略