问题
选择题
He had his camera ready________he saw something that he would make a good picture.
A even if B if only C in case D so that
答案
答案：C
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He had his camera ready________he saw something that he would make a good picture.
A even if B if only C in case D so that
答案：C
缺失，前后均有基牙。按Kennedy分类属于（）。