Употребите подходящий по смыслу модальный глагол: 1. what (can/should) i do for you? 2. where (may/should) i turn to get to the metro station? 3. you (mustn’t/shouldn’t) cross the street on the red light. 4. peter (can/must) watch tv from morning till night. 5. we (may/must) take care of our parents.