this book must not __(lend) t o others ,you must __(return) it before Fridy .用适当语态填空

问题描述:

this book must not __(lend) t o others ,you must __(return) it before Fridy .用适当语态填空

前面是lend后面是特turn
因为都是接在must这个情态动词后面,必须要用动词原形(⊙o⊙)哦

be lent( 含有情态动词的 被动语态)
return (情态动词后接动词原形)