The air in big cities _____very dirty by factories.
| A．are often made | B．is often made | C．have often made | D．has often made |
Come and see me whenever _____.
| A．you are convenient | B．you will be convenient |
| C．it is convenient to you | D．it will be convenient to you |
This necklace is beautiful but it doesn’t _____ the color of your hair.
| A．agree | B．go with | C．fit for | D．suit |
---How did your father catch so many fish?
---By using a ____.
| A．bamboo long fishing pole | B．long bamboo fishing pole |
| C．fishing long bamboo pole | D．bamboo fishing pole, long |
You can arrive in New York earlier for the conference ____ you don’t mind taking the night train.
| A．if | B．though | C．until | D．unless |
---What would you like to see, my passport or my ID card?
---Oh, ____.
| A．either one will do | B．each will be fine |
| C．each one is good | D．either does well |