I simply couldn't understand how it ________ that you did so much work within such a short time.A.came about B.came up C.came back D.came along

I simply couldn't understand how it ________ that you did so much work within such a short time.A.came about B.came up C.came back D.came along
I simply couldn't understand how it ________ that you did so much work within such a short time.
A.came about B.came up C.came back D.came along

I simply couldn't understand how it ________ that you did so much work within such a short time.A.came about B.came up C.came back D.came along
答案A come about意为“发生”,句中it为形式主语,that从句为真正的主语. 查看原帖>>
记得采纳啊