She______know the answer, but I’m not sure.
Dr Bethune came to China ______the Chinese soldiers and gave his life to ____Chinese.
I asked Jim and Bob to come to my house for dinner , but ____ of them came .
Suddenly he came in and said he had ____ to tell the class.
--- Have you seen ________ film Where are We Going, Dad? ---Yes, it's ________ interesting film!
Li Ying used to _______playing the piano, but now she gets used _______the violin.