Not only you but also Tom ___ such a mistakeA.have madeB.has made

问题描述:

Not only you but also Tom ___ such a mistake
A.have made
B.has made

似乎是B。(have的第三人称单数是has)跟you似乎没什么关系

A 因为你和Tom二人.

B.根据“就近原则”,谓语动词与but also后的主语一致,所以用单数.

B,has made
not only……but also 重点在转折的词but之后,即强调后者。强调tom 也犯错误,故用第三人称单数形式。