问题
选择题
It was quite ___accident that I met him; he was homeless and ___rags at that time.
A．by; in
B．on; in
C．at; by
D．in; in
答案
答案：A
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It was quite ___accident that I met him; he was homeless and ___rags at that time.
A．by; in
B．on; in
C．at; by
D．in; in
答案：A