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Read these dialogues and write the correct word.
Example 0. Shall we go to the
cinema? That's a good_____
Answer 0. idea
1. - How______ buying these apples? - Sorry, I don't think that's a really good idea.
2._______don't we sell these books? -Do you think so?
3.- What about visiting this museum?
-Sorry,I_______think it's a good idea.​

1. about

2. why

3. don't