The students were singing an English song _______ Mr. Xiang came in the classroom.A. after B. before C. when
The old man _____ under a big tree is holding a _____ pole in his hand.
---How do you learn English words ? ---______ making flashcards.
Do you know the man _____ is sitting behind Nancy ?
I’m not sure ,but he’s supposed ______ sometime next week.
We all went to see the film_____ Tom. What a pity it is for him to miss it!