问题
选择题
Nowadays, children under 1.4 meters _______________ be free to take buses in some cities.
A．need
B．must
C．shall
D．can
答案
答案：D
题目分析: 句意：如今，在一些城市1米四以下的儿童可以免费乘公交车。need需要，must必须，shall将，can能。根据语境可知是可以，故选D
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