—How many _____ are there in your class?
—About 63.
A.childs B.childrens C.children
---Must I answer it in English?
---No, you _______. You can use Chinese.
| A．shouldn’t | B．can’t | C．mustn’t | D．needn’t |
---How much money did you pay for the drink?
---None. It’s ______.
| A．free | B．hard | C．dear | D．cheap |
---Can you describe_______?
---Of course.
| A．what the robber is like | B．how the robber is like |
| C．what does the robber look like | D．how the robber looks like |
---Tina, I want to have a pet. How about a dog?
--- I prefer a cat. It is ______ to take care of.
| A．easiest | B．the easiest | C．easier | D．easy |
This piece of music is worth __________.
| A．to listen | B．to listen to | C．listening | D．listening to |