The old man was upset because his favorite vase __________ by his grandson.
It usually takes my mother forty minutes _______ the house.
There is _____ “u” and _____ “r” in the word “your”.
Don’t throw plastic bags towards the animals in the zoo.
---Is that Mr Smith? ---It __________ be him. He is in New York on business these days.
The boy looked __________ because he didn’t pass his maths test.