Can you tell me ?A、how old your brother is B、how old is your brotherC、your brother is how old
--_______students are there in your class,Mr Li? --Fifty.
---How’s your mum?---She’s ________.
---What color_____ the cats?---I think ________white and black.
-- Where are the_____?-- They are on the desk.
It’s _______black. It’s _____black car.A…./… B.a/… C…./a D.a/a