问题
选择题
According to a survey, few children from single-parent families have a hobby and that hobby ______ last for only a year or two.
A．ought
B．must
C．may
D．need
答案
答案：C
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According to a survey, few children from single-parent families have a hobby and that hobby ______ last for only a year or two.
A．ought
B．must
C．may
D．need
答案：C