来自黄继雄的问题
thisbookmustnot__(lend)toothers,youmust__(return)itbeforeFridy.用适当语态填空
thisbookmustnot__(lend)toothers,youmust__(return)itbeforeFridy.用适当语态填空


thisbookmustnot__(lend)toothers,youmust__(return)itbeforeFridy.用适当语态填空
thisbookmustnot__(lend)toothers,youmust__(return)itbeforeFridy.用适当语态填空
belent(含有情态动词的被动语态)
return(情态动词后接动词原形)