vii/

1, is having- were having

2, because- however

viii/

1, mai is keen on writing short stories in her free time.

2, tom runs faster than Jill

3, jean cloth is made completely cotton in the 18th century.

4, although the girl worked hard, her step mother wasn't happy.

ix/

1, d old-time

2, a for

3, a recent

4, a popular

x/

1, i have to do housework before going out.

2, they were watching a football match on tv at 7:00 last night.

3, what about going to the cinema on the weekend?

4, according to tradition, we should greet the elder people respectfully before them.

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