When she returned back abroad, Fay M. Zhang told us all about her expe-考呗网

单选题When she returned back abroad, Fay M. Zhang told us all about her experience as an illegal immigrant.

固定搭配
return本身带有“back”之意，回国直接用return from abroad即可，因此C为答案。

1The government has hardly taken measures to crack down on these crimes when new ones occurred.

2The traffic police stopped three trucks heavily loading with merchandise that looked as grain bags.

3According to some scientists, the computer will do much harm to people's health as smoking and drugs do.