He told us whether ________ a picnic was still under discussion.[ ]A. to hav

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He told us whether ________ a picnic was still under discussion.[     ]
A. to have
B. having
C. have
D. had

答案

举一反三

She prefers ________ her clothes by hands rather than by machine.[     ]
A. having washed
B. washing
C. being washed
D. to wash

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Passengers are permitted ________only one piece of hand luggage onto the plane.[     ]
A. to carry
B. carrying
C. to be carried
D. being carried

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        this cake, you"ll need 2 eggs, 175 g sugar anci 175 g flour.    [     ]
A. Having made
B. Make
C. Making
D. To make

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Measures have been taken ________ the spread of the HIV.[ ]
A. arresting
B. arrested
C. to arrest
D. for arresting

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       the safety of gas, the government has checked the city"s gas supply system thoroughly.[     ]
A. To ensure
B. Ensuring
C. Having ensured
D. To have ensured

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