Many Chinese students think science subjects are foreign languages.
| A．more difficult as | B．less difficult than |
| C．much difficult than | D．so difficult as |
She seldom needs help with her work, _______she?
| A．doesn’t | B．needn’t | C．does | D．need |
Ladies and gentlemen, please turn off your mobile phones. The plane will _________ soon.
| A．get on | B．get off | C．take off | D．take out |
—I miss my mother very much. She has gone abroad on business for nearly a year but luckily she will be back in a week.
—Pardon? I ______ something else just now. ________ will she come back?
| A．was thinking; How long | B．thought; How often |
| C．was thinking; How soon | D．thought; When |
At present, more and more people prefer _________ in the countryside because there is _____ pollution in the city.
| A．living, more | B．to live, less |
| C．living, less | D．to live, more |
—Could you tell me ______________?
—It’s twenty minutes by underground.
| A．how I can arrive to the club |
| B．how much it costs to reach your school |
| C．how far it is from your home to the museum |
| D．how long it took me to get to the supermarket |