--- _____ does a CRH train run?--- It runs

--- _____ does a CRH train run?--- It runs
--- _____ does a CRH train run?--- It runs up to more than 300 km an hour.A) How long B) How far C) How fast D) How soon Mr.White always expected his son _____ an active part in the classes.A) taking B) take C) takes D) to take 也要具体理由.