1 . I’m sure there are all kinds of historic sites ____________ cultural relics need to be protected. (用适当的词填空)

2 . This is the factory __________ you visited the other day. （用适当的词填空）

3 . Would you please give me some cases ______ I can use the phrase? (用适当的词填空)

4 . The young man with ______ father my uncle worked in the earthquake rescue team is my best friend.(用适当的词填空)

5 . The man__________father I have talked to is Jack. (用适当的词填空)

6 . October 1st, 1949 is the day __________ the PRC was founded. (用适当的词填空)

7 . The Wandering Earth was the best domestic film __________ I had seen with my parents. (用适当的词填空)

8 . The little boy __________parents had been seriously injured in a car accident had no choice but to live with his aunt. （用适当的词填空）

9 . When I was a child, I would play with my friends in the place __________ used to be an old park. （用适当的词填空）