WhatistheskyWherei的精选

问题详情：完型填空；阅读短文，从各小题所给的A、B、C、D四个选项中选出最佳*。Whatisthesky?Whereisit?Howhighisit?Whatlivesaboveit?Thesequestionsaredifficult  1 ， 2  they?Istheskyblue?Thesky  3  nocolo...