Ответ:
с will всегда используется present continues
1 did not they
2 did not they
3 will they
4 did not it
5 did he
6 are not we
2 My younger sister can stay alone now, but it could not do last year.
3 My best friend can play tennis now, but it could not do a month ago.
4 Your dog can open the door itself now, but it could not do last week.
5 I can sing very well now, but it could do when I was a child.
6 He can cross the river now, but it could do when he was younger.
7 She can run very fast now, but it could do two years ago.
At the first sign of a fire, it is necessary to notify the fire department immediately. The telephone number of the unified rescue service is 01. Clearly name the address where the emergency occurred, the degree of threat to people, the route of optimal travel, your name. It is known that the rapid spread of fire in homes contribute to ventilation ducts, open doors, windows through which additional oxygen enters, contributing to the development of fire. If you do not have the opportunity to leave the apartment, go to the balcony and try to attract the attention of passers-by so that they call the rescue service and firefighters.