------Where are my books? -----_________. Are they in your schoolbag?
---Hi! Long time no see. ---Yes. It’s almost three years_____ we met last time.
---Must I answer it in English? ---No, you _______. You can use Chinese.
---How much money did you pay for the drink? ---None. It’s ______.
---Can you describe_______? ---Of course.
---Tina, I want to have a pet. How about a dog? --- I prefer a cat. It is ______ to take care of.