问题
选择题
Last Sunday，we took ________ guided walk around by ________ signs of the famous town.
A．the；the
B．a；/
C．the；/
D．a；the
答案
答案：D
take a walk为习惯用法，故第一空用不定冠词；第二空特指那个著名城镇里的指示牌，故用定冠词。故选D。
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