下列实验方案中，不可行的是（ ） A．除去粗盐中的泥沙，采用溶解、过滤、蒸发的步

情景交际（本题共５小题；每小题2分，满分１0分）从方框内选出适当的选项完成对话，有两项是多余的。
A: Hello! Mr. Wang. 小题1:_______  What are you doing?
B: I’m looking for a book called A Tale of Two Cities.
A: 小题2:_____________
B: That’s right. I’m thinking about asking some students to act a play about the book.
A: 小题3:_____________ But I think that’s a bit hard for our students.
B: Well. 小题4:_____________ By the way, I hope you can be the hero of it.
A: Really? I’ll try my best.
B: OK. 小题5:_____________ Then I’ll give you one week to get ready.

A. I’ll choose a simple scene. B. As far as I remember, it was written by Charles Dickens. C. Go on. D. Sounds like a good idea! E. I’ll write it in the play version (改编本). F. You look very busy. G. Why do you look for it?