1. You should use a dictionary to check the meaning of new words. (LOOK)
...=>........You should use a dictionary to look up new words.........
2. The doctor told my father to stop smoking. (GIVE)
...=>...Thedoctor told my father to give up smoking...............
3. The cost of living has been increasing considerably in the past few weeks .(UP)
=>... The cost of living has been going up considerably in the past few weeks........
4. Margaret Thatcher was born and spent her childhood in the town of Grantham, Lincolnshire,England. (GREW)
..=>...Margaret Thatcher was born and grew up in the town of Grantham, Lincolnshire, England...........
5. His business is going badly – he’ll have to stop doing it soon. (CLOSE)
.=>..His business is going badly, so he’ll have to close it down soon.
6. My aunt has got two teenage children, but they don’t seem to have a good relationship with each other. (GET)
=>My aunt has got two teenage children, but they don’t seem to get on well with each other.