革命伤残军人凭《()》免费乘坐地铁。
参考答案:中华人民共和国残疾军人证
Jim isn’t from a poor family, yet he often comes to school wearing the same clothes every day ________the week.
A.of
B.for
C.at
D.from
The Natural Approach considers ______ as the most important element of any language teaching program.