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1. What were you doing when you heard a bad news?

2. when a door-bell rang, he just stood still for a moment before opening it.

3. If you want to see Professor Adamsgo go to the Room 29. Professor is giving a lecture there.

4. Milk in that jug is very cold. You shouldn't drink such of cold milk.

5. She was a first woman to cross at Atlantic in the canoe.

6. You can keep a bool because I wowon't take it to the library until end of the month.