Choose the correct words or word combinations to complete the instruction.

Choose the correct option.

We usually write semi-formal letters to [our closest friends|people we don't know|people we know but not very well].

These letters should sound [respectful|funny|relaxed].

In these letters we use [formal language|informal language|less formal language] and [active|passive|future] expressions.

Our tone should be [funny|strict|polite].