Ⅰ. 用适当的介词填空
1. Do you know the girl to/with whom our teacher is talking?
2. He handed me a pen with which I wrote down his phone number.
3. The university in which my brother once studied is very famous.
4. Yesterday we visited the West Lake for which Hangzhou is famous.
5. I’ll never forget the time during which I spent my childhood in the country.
6. The colorless gas without which we can’t live is called oxygen.
7. The reason for which he refused the invitation is not clear.
8. Great changes have taken place in the city in which I was born.
9. They do experiments in a lab, of which the windows face south.
10. The old man has three sons, all of whom care about him.
