I had some salt ____to soupA.to add B.added C.added to D.add to 请_英语解答

I had some salt ____to soup
A.to add
B.added
C.added to
D.add to
请问为何选C

人气：450 ℃　时间：2020-03-29 21:55:04

解答

B
have sth done句式
add to 是个固定搭配