VII:
1: know
2: what
3: subjects
4: written
5: many
6: in
7: understanding
8: friendship
VIII:
1: about
2: in
3: in
4: to
5: For
6: to
7: about
8: before
9: to
10: from
IX:
1: bought
2: was
3: had sold
4: would pass
5: could
6: would sell
7: had gone
8: didn't do
9: listened
10: must
X:
1: It is high time we go home
2: Unless you have a jacket and tie, you can't go into this restaurant
3: It was such a difficult question that no one could answer it
4: This letter hasn't been finished by her yet
5: If he isn't good at English, he can't get a job
XI:
1: Tom said that he wanted to visit his friends that weekend
2: Jerry said that she was studying English a lot at the moment
