—When is Lang Lang’s concert?
—It’s three o’clock the afternoon of December 18th.
| A．at ； in | B．at； on |
| C．on； in | D．in； on |
—When is Lang Lang’s concert?
—It’s three o’clock the afternoon of December 18th.
| A．at ； in | B．at； on |
| C．on； in | D．in； on |
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