— Have you got John's letter?
—Yes, but I don't think his letter is worth _______.
| A．answering it | B．to answer it |
| C．answering | D．being answered |
---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 |
---Oh, my God! We have missed the last bus. What shall we do?
---I’m afraid we have no ________ but to take a taxi.
| A．decision | B．advice | C．reason | D．choice |