(2013·咸阳二模)We should keep in mind that the earth is our only home and only by sa

题干

(2013·咸阳二模)We should keep in mind that the earth is our only home and only by saving the environment________ourselves.

A．we can save	B．can we save
C．we must save	D．must we save

上一题下一题 0.64难度单项选择更新时间:2014-06-19 01:33:26

小学学科试题库

初中学科试题库

高中学科试题库