摘要： The teacher told us yesterday that December 25 Christmas Day. A. is B. was C. has been D. will be 答案:A 解题点拨:一般情况下.主句是一般过去时.宾语从句要用过去的时态.但当宾语从句表示的是客观真理时.则从句仍用一般现在时.

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