I don't know how much it ___ to fly to London 单词拼写
问题描述:
I don't know how much it ___ to fly to London 单词拼写
答
I don't know how much it costs to fly to London
答
is
答
costs
理由 It costs sometime to do stn.
It takes sb sometime to do sth.
而原句I不作宾语,所以不存在三楼的句式,所以是costs