write the question tags. 1.(пример) people have used invisible ink for thousands of years, HAVEN"T THEY? 2. its completely invisible, .......... 3. not many people know about invisible ink, .............. 4. you can use milk as invisible ink too, .............. 5. it goes brown when you heat it, ........... 6. the paper wont burn when you heat it, ......... 7. youll be careful, ............ помогите пожалуйста .
2..., isnt it?
3..., dont they?
4....,cant you?
5....,doesnt it?
6...., will it?
7...., wont you?
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