Two of the boys in our class____always______when the teacher is speaking

问题描述:

Two of the boys in our class____always______when the teacher is speaking
A.are;talking
B.is;talking
C./;talk
D./;talks

are talking为什么?语意上讲得通呀老师在讲课的时候,我班总有两个男生在讲小话 进行时态要用 am(is, are)+ v-ing由于主语是Two of the boys 复数, 所以排除B(单数谓语)