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. it’s no use crying over spilt milk. 5. had they applied the new method, the result would have been much better.