题文
We will celebrate 
the 90th birthday of the Chinese Communist Party _____ July 1st, 2011.
| A．on | B．at | C．in | D．during |
We will celebrate the 90th birthday of the Chinese Communist Party _____ July 1st, 2011.
| A．on | B．at | C．in | D．during |
试题篮
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