not only the parents but also their son ______ here for two yearsA.has come B.have been C.has been D.have come可是后面是here 不应该用come么。
问题描述：
not only the parents but also their son ______ here for two years
A.has come B.have been C.has been D.have come
可是后面是here 不应该用come么。
答
B
答
C
答
C,
方法：先排除has。因为不是单数。
然后，for two years表示是已经住了两年了
所以，在这里要用，have been
答
C 以BUT ALSO 后的主语保持一致
答
补充：不能用come.因为come是瞬间动词,不能与后面的for two years 一段时间连用,has been here表示“到这里”,是正确答案.答案：C解释：not only … but also …连接两个名词作主语时,谓语动词的单复数形式要根据就...