You_____go to bed at 9:30.That's our family rule
這里是用must還是have to
剛開始我認(rèn)為是have to但是仔細(xì)考慮過后我認(rèn)為是must
因為must表客觀,而have to是主觀,have to不得不,經(jīng)常以我做主語.而這里是母親說“你必須9點半睡覺”,That's our family rule,既然是家規(guī),那么應(yīng)該是客觀了.