the greens getting ready for their trip

题目

the greens getting ready for their trip
a:are b:is c:can be d:has been

答案

a,the greens特指一个家庭,用复数,b排除
d是现在完成进行时,指过去的动作持续到现在,将来可能进行,d排除
c,can be则是能保持某种状态故排除