Укажите грамматическуюконструкцию в каждом предложении (Gerund герундий, Participle

Укажите грамматическую
конструкцию в каждом предложении (Gerund герундий, Participle причастие и
Conditional Clause условное
придаточное предложение):

1. While driving a car one should be very attentive.

2. Living in little
stuffy rooms means breathing poisonous air.

3. The problems discussed
at the last conference were interesting.

4. Its no use
crying over spilt milk.

5. Had they applied
the new method, the result would have been much better.