The number of people invited ____ fifty, but a number of them ____ absent for different reasons.
After reading the text, he ___ down some words in his notebook.
---Could you tell me ___ all of you think of your teacher? ---She’s a good teacher.
All ___ can be done has been done.
The train __ for five minutes by the time we got there.
It ___ to be raining when we went to see him off at a railway station.