Though suffering constant noise from the outside world, little Tommy was still w

题干

Though suffering constant noise from the outside world, little Tommy was still working with all his
attention _____ on his unfinished warship model.

A．focusing

B．concentrating

C．fixed

D．looking

上一题下一题 0.85难度单项选择更新时间:2010-06-08 12:33:45

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