When traveling, you sometimes have to go somewhere alone, always ____ your atten

题干

When traveling, you sometimes have to go somewhere alone, always ____ your attention on your belongings.

A．focusing

B．focuses

C．focused

D．focus

上一题下一题 0.64难度单项选择更新时间:2016-05-25 05:37:10

小学学科试题库

初中学科试题库

高中学科试题库