--- Which month has _________ days in a year?--- February.
You won’t feel happy at school ________ you get on well with your classmates.
I ________ my homework, I guess I can’t join you.
We have a lovely room. It’s one of ________ in the hotel.
---We must act now because time is ________.--- Yes, Let’s start.
They were ________ busy ________ with each other ________ the time.