I. Fill in the gaps with suitable prepositions:

1. There's no sense .. making people unhappy.

2. There's no risk ... going there alone: nobody will do you any harm.

3. There was no resemblance ... him and his daughter.

4. There's something strange ... the man.

5. There was an air ... friendliness in the room.

6. There is an alternative .. your plan.

7. Will there be any benefit . me if I do it? friendliness in the room.