(1/2)Dad returned half an hour later.he opened a large groce

half an hour later a half hour later\after half an hour\after half an hour late 为什么half an hour later 中an不变成a he returned a week later. He was here().A.half an hour before B.half hour ago C.half a half an hour or a half hour? a half hour还是half an hour? 改写He returned home an hour ago He returned home an hour ago 1she goes ___(run) for half half an hour every morning 2he i Dad spends half an hour _ food every day.a.to cook b.cook c. 译：An hour later,a number of passengers equal to half the