问题
选择题
- How often do you visit your grandparents, Tom ?
--__________
A．Half an hour.
B．Three hours.
C．Twice.
D．Hardly ever.
答案
答案：D
how often意思是多久以后，表示频率，常用频率副词来回答，比如often，never，hardly，once a week等。
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