问题描述：
51.John looked very _______ when he got to know that he had failed in the final ...附上原因
51.John looked very _______ when he got toknow that he had failed in the final examination.
A.depressing
B.depressed
C.depression
D.depress
51.John looked very _______ when he got toknow that he had failed in the final examination.
A.depressing
B.depressed
C.depression
D.depress
问题解答：
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