—Could you please tell me_______?
—Sorry, you can turn to Mr. Lee for help.
| A．how long can man live without water |
| B．how long could man live without water |
| C．how long man can live without water |
| D．how long man could live without water |
---The air pollution is terrible.
---It will be worse _______ we take action to protect the environment.
| A． if | B．unless |
| C．until | D．When |
---Which magazine do you like better, Crazy Reading or Teen’s Space?
---I like ______ of them. They are useful for English lessons.
| A．none | B．neither | C．all | D．both |
---Can you find out our city _________ a lot in the last few years?
---Yes. The road is wider and the buildings are taller.
| A． has changed | B．changes |
| C．changed | D．will change |
---Can you tell me something about my favourite football star David Beckham?
---Certainly. He has _______ children. Brooklyn Beckham is his _______son.
| A．fourth; first | B．four; one |
| C．four; first | D．fourth; one |
---Mrs. Smith has ______ eight-year-old daughter who has won two national painting prizes.
---Do you mean _______ unusual girl in a blue skirt?
| A．an; an | B．an; the |
| C．the; the | D．the; a |