All I have learned about the exam____ that three students faileD. A. is B. are C. will be D. have been
---Would you please show me ___ to run the machine?----Sure.
Great changes ___ in the recent years.
The reason ___ he didn’t attend the meeting yesterday was ___ his child had fallen ill.
The old man ___ us interesting stories when we were young.
You should learn from the others ___ you are.