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SCQ93

Q 93. It is well known in the supermarket industry that how items are placed on shelves and the frequency of inventory turnovers can be crucial to profits.
D. how frequently is the inventory turned over are often 我觉得这个很平行,与how items are,很匹配
E how frequently the inventory turns over can be. (对) 根据原句can 选E吗?为啥是inventory主动呢?
求老师解答

注意,疑问句,你要用倒装:how good is your English? (谓语放在主语前面)
作为从句,你不能倒装:I don’t know how good your English is. (谓语放在主语后面)

所以D错了
另外D去除了情态动词can,我说过can,may等情态动词是表意的,你不能随意去除,否则就change the original correct meaning