Yourcomputer____inacool,cleanand

发布时间：2020-07-11 00:03:54

Your puter ____ in a cool, clean and dry place. That is good for your puter.













A.must keep












B.must be kept











C.must be carried











D.must in

网友回答

B解析puter是keep的承受者，所以用被动语态，含情态动词的被动语态的构成：情态动词+be+动词的过去分词。故选B。
以上问题属网友观点，不代表本站立场，仅供参考！