—Could I surf the Internet for twenty more minutes, Mum?
—Oh, dear, if you________.
| A．must | B．can | C．may | D．should |
相关试题
29. ____ time and labour, you should join hands ____ him in the business.
| A．To save; with | B．Saved; with  |
C．Saving; with | D．Having saved; by |
Many students signed up for the _____ race in the sports meeting to be held next week.w
| A．800-meter-long | B．800-meters- long | C．800 meter length | D．800 meters length |
27. Johnson ____ for 5 years for political reasons when he was young.
| A．was put in prison | B．was in the prison | C．got out of prison | D．was in prison |
26. He to paint the whole house but finished only the front.
| A．set about | B．set off | C．set out | D．set in |
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