I think the MP3 is very helpful. It ______for listening to music. [ ]A. is

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I think the MP3 is very  helpful. It ______for listening to music.  [     ]
A. is used
B. uses
C. was used
D. used

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举一反三

—Do you know when the 29th Olympic Games  _______?
—Yes,in 2008.   [     ]
A. hold
B. is held
C. was held

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The  sick boy _____ to hospital by the police yesterday.    [    ]
A. is taken
B. was taken
C. takes
D. took

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—There"s too much salt in the Chinese diet.
—So there is. The WHO says only 1.5 grams of salt_________for each man every day.[     ]
A. is needed
B. needs
C. will need
D. has needed

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It"s common knowledge that black tea ________ in China more than 600 years ago.[     ]
A. is invented
B. was invented
C. invents
D. invented

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These pictures _______ when we went to Mountain Tai last weekend.[     ]
A. took
B. were taken
C. will take
D. will be taken

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