Grade 1 students should only have half an _______ homework.
A. hour
B. hours of
C. hours'
D. hour of
【答案】D
【解析】句意：一年级的学生应该仅仅有半个小时的作业。根据an，所以用单数，排除B/C；根据半个小时的，所以用名词所有格；故选D
Grade 1 students should only have half an _______ homework.
A. hour
B. hours of
C. hours'
D. hour of
【答案】D
【解析】句意：一年级的学生应该仅仅有半个小时的作业。根据an，所以用单数，排除B/C；根据半个小时的，所以用名词所有格；故选D
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