—I don’t know________next.—You’d better finish your homework first.A.what to doB.how to doC.when to do
---____________ does he like science? ---Because it’s interesting.
I don’t like white,but my brother_______.
---My pen is yellow._________yours? ---It’s red.
--What _____do you like best? --I like oranges.
---Is this iPad yours, Jenny? ---No, it’s_____. ____is on the desk.