they have been away for six years如何改为同义句 six years ____ _____since they left
问题描述:
they have been away for six years如何改为同义句 six years ____ _____since they left
they have been away for six years如何改为同义句
six years ____ _____since they left
答
has passed.
这道题考点在于完成时的助动词用have 还是has.
要注意,这里的主语虽然是six years,复数形式,但是助动词仍要用has而不是have,因为时间作主语,谓语动词要用单数.
祝进步,不懂追问.