A sit 是不及物動詞,所以后面還要加 on
如果動詞是seat,就應該選B了
the boy didn't know_____ .a.which chair to sit on b.which chair to sit選 A對吧.CHAIR做賓語,所以加ON
the boy didn't know_____ .a.which chair to sit on b.which chair to sit選 A對吧.CHAIR做賓語,所以加ON
英語人氣：484 ℃時間：2020-04-21 22:07:05
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