At first , the bag seems made of real leather, but actually it is just an imitation.
A. sight
B. look
C. appearance
D. view
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(答案→)A. sight
B. look
C. appearance
D. view
解析：考查名词和短语，A. sight看见，视野B. look看，表情，C. appearance外貌D. view观点，视角，at first sight第一眼，句意：第一眼看，这个包好像是真皮的，但实际上这是仿品。选A。