Complete these sentences with the verbs and adjectives.

didn't have to      must         need to    allowed         official        significant

having to         mustn't     needn't have     impossible     required     unnecessary

I wear a jacket and tie last night. Formal attire was not .

You made so much noise. All that shouting was quite .

People have dogs in their rooms. Pets are not in the hotel.

You won't fill in forms. All the paperwork will be complete.

Not pay to use the pool is a benefit of being a student here.

Everyone have a valid passport because it will be to enter the country without one.