Don’t _______ the animals in the zoo. They are very dangerous!
I want to know you will come back at 8:00 clock tomorrow.
--- Which of these sweaters would you like? --- _____. They are both expensive and out of fashion.
I hope my classmates can come up with a way to _______ the sick boy.
You needn’t worry ____ about your Maths. Work harder and you will do better.
---It seems that Mr. Wu is standing there. ---It ________ be him because he called me from Canada just now.