I\'ve been waiting for him for ______ hou

天天题库2019-12-17 12

问题 I've been waiting for him for ______ hour and ______ half.

选项 A. ×; ×B. the; aC. a; ×D. an; a

答案D

解析"an hour and a half"表示"一个半小时"。其他选项都不成立。

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