i am writing to find out the facts ( ) to your recent insurance c_英语解答

i am writing to find out the facts ( ) to your recent insurance claim
a .be related b .relate c.relating

人气：267 ℃　时间：2020-05-26 13:13:43

解答

c.relating
如果主语是人,用被动语态；如果主语是事物,用主动语态.