______the students often_____their homework at home ?怎么做?A.Does does B.Do doC.Does do
问题描述：
______the students often_____their homework at home ?怎么做?
A.Does does
B.Do do
C.Does do
答
选B.
第一，students是个复数，所以应该是do。
第二，后面那空，这句的陈述句形式应该是The students often do their homework at home.
助动词提前，所以后面空出来的也是原形。
例如The student often do his homework at home.若改成疑问句就是Does the student often do his homework at home？
就是这个原理……
答
选B.
答
B
因为主语是复数,所以助动词选do,后面为动词原形
答
B.Do do
第一个空由于是复数 所以用助动词do
第二个空是实义动词 表示 做