【求助】GWD 第一套verbal 第一题

昏昏倒地

According to a survey of graduating medical students conducted by the Association of American Medical Colleges, minority graduates are nearly four times more likely than are other graduates in planning to practice in socioeconomically deprived areas.

A.        minority graduates are nearly four times more likely than are other graduates in planning to practice
B.        minority graduates are nearly four times more likely than other graduates who plan on practicing
C.        minority graduates are nearly four times as likely as other graduates to plan on practicing
D.        it is nearly four times more likely that minority graduates rather than other graduates will plan to practice
E.        it is nearly four times as likely for minority graduates than other graduates to plan to practicing
答案是a我选d 不知道怎么解释啊，求助拜谢各位大神了！

boalgmat

more必须与than 连用 还有 it没有指代 也不是形式主语

A是主语比较 A is four times than B is
其中is不可以省  如果省略 有歧义

A eats more apples than B  就是 A吃的苹果比B多 或者 A吃苹果比吃B多