题目内容：

____ so many profits have been made in the past three years is the strongest argument for continuing the business
A：What
B：Since
C：That
D：As

优质解答

选Cthat引导的主语从句（That so many profits have been made in the past three years） is the strongest argument for continuing the business.括号里面为主语把主谓宾抽离出来,句子的主干就是：That is the ar...