________ in what he was reading, he didn’t see me before he almost knocked me do

题干

________ in what he was reading, he didn’t see me before he almost knocked me down.

A．Absorbing

B．To be absorbed

C．Absorbed

D．Having absorbed

上一题下一题 0.85难度单项选择更新时间:2013-06-06 09:28:24

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