Помогите с номером 1 и 2

Question

Помогите с номером 1 и 2

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Answer 1

1.
1)happen
2)introduce
3)greet
4)in advance
5)traffic
6)rude
7)postbox
8)order

2:
1)in advance
2)happened
3)was introduced
4)orders
5)rude
6)greeted
7)postboxes
8)traffic