Must he_(stay) with his parents and _(study)every day用动词的适当形式填空

问题描述:

Must he_(stay) with his parents and _(study)every day
用动词的适当形式填空

stay study
must是情态动词 后面接动词原形 and连接前后两个分句,前后形式一致即可

stay study

stay和study都是用原型

填stay和study…都是用原型…

Must是情态动词后接动原,而and 是并列连词动词时态和前一分句一样,则stay和study都是用原型