到月球上要花费我们大约3个小时.
问题描述：
到月球上要花费我们大约3个小时.
It _____ ______ us about three hours _____ get to the moon.
答
It willtake us about three hours toget to the moon.
到月球上要花费我们大约3个小时.
It _____ ______ us about three hours _____ get to the moon.
It willtake us about three hours toget to the moon.