.Mr.Smith ___________ is smoking is looking for what he lost yesterday.A. whom B. who C. which
---Which city do you think isn’t a capital, Lucy? ---It’s .
Beijing is ______ old and beautiful city. It is _____ capital of China.
How much time did you spend the new words in Unit 10?
---Someone is knocking at the door. Who may it be? ---It ______ be Tom. He is still in the school.
---Have you seen Dr. Adams recently? ---No. He __________ Hong Kong for an important meeting. He’ll come back tomorrow.