I have two children, and _____ of them are working in the west of China.
--- Can you tell me what to wear at the party?---If I you, I the blue jeans.
---Doctor, it seems ______ you like to work with animals.---Yes, I think animals should ______ as our friends.
---Have you seen him recently? ---Yes. I him the other day on the street.
To our _________, Hawking didn’t worry about his problems in the slightest, _________, he just face the problems.
It is our duty ______much attention to ________ our best to keep our city clean.