Вставить наиболее подходящий МГ(модальный глагол): 1 Will you … to come at 7 sharp? 2. We … to help the younger children.

1 Will you … to come at 7 sharp? — Will you have to come at 7 sharp?  

1. We … to help the younger children. — We have to help the younger children
2. You … always check up the electric appliances before going out. — You must always check up the electric appliances before going out.
3. We … to have met yesterday. — We had to have met yesterday
4. Help me with the iron. It … (not; work). — Help me with the iron. It can not work.
5. You ... take care of your sister. She’s too small and … (not) live by herself. — You must take care of your sister. She’s too small and may not live by herself.
6. Old people … (not) be left without care. — Old people must not be left without care.