these new books must ______ before the teacher comes to the classroomA be given out B gave out C are given away D give out +
问题描述：
these new books must ______ before the teacher comes to the classroom
A be given out
B gave out
C are given away
D give out +
答
选A
解析：give out分发；give away赠送，根据句意这些新书要被分发，所以用被动语态be given out
答
A, 因为books是物体，需要用被动语句， “需要被交出”
B 和D gave/give out 是主动语句
C 的be 动词不对，must 后要接be
答
A be given out
must 是情态动词,后面要加动词的原型.所以BC都不对,另外,注意书是被分发的,book 跟give out 是动宾关系,用被动语态,所以选A