完形填空被动语态 I have been befriended and befriended many

完形填空
被动语态
 I have been befriended and befriended many people since arriving in Beijing.
A) on B) by C) with D) in
 A security research organization based in Berkshire that is funded in part the motor insurance industry.
A.about B.to C.by D.on
 You only find out you have when you try to visit a "friend's" sit
A) been dumped B) dumped C) being dumped D) dumping