来自罗懿祖的问题
WeallknowthatChinesestudentsstudyveryhardforlong___.A.daysB.timeC.hoursD.weeks选B还是C?
WeallknowthatChinesestudentsstudyveryhardforlong___.A.daysB.timeC.hoursD.weeks
选B还是C?


WeallknowthatChinesestudentsstudyveryhardforlong___.A.daysB.timeC.hoursD.weeks选B还是C?
WeallknowthatChinesestudentsstudyveryhardforlong___.A.daysB.timeC.hoursD.weeks
选B还是C?
Cforhours是形容前面的动词持续的时间,表示长达几个小时
选B的话应该用foralltime