4: When I was a child, I enjoyed playing computer games.
5: My father spends most of his spare time looking after the garden.
6: Watching TV is the most popular leisure activity in Britain.
7: Many teenagers are addicted to the Internet and computer games.
8: Lan is fond of messaging her friends because it is more convenient than calling.
9: Teenagers should play sports to keep fit.
10: Today, farmers in the village usually use combine harvesters to harvest crops.