3, The cost of living has been going up considerably in the past few weeks.

5, his business is close to stop as it is going badly.

6, my aunt has got two teenage children who don’t seem to get on well with each other.

7,  When will you come back to work after the vacation?

3. the cost of living has been going up considerably in the past few weeks

5. his business is going badly so he 'll have to close it down soon

6. my aunt has got 2 teenage children, but they don't seem to get on well with each other (get on well with sb = have a good relationship with sb )

7. when will you come back to work after the vacation?