[求助] a question about structure.......

hazard

(1) Many nineteenth-century lumberjacks were farmers _______ to earn extra cash.

1. tried
2. trying

ANS : 2.........why can't choose 1. ?  [ Many nineteenth-century lumberjacks were farmers ( who are ) tried  to earn extra cash.]......why can't ?

Diana

……( who are ) tried  to …… 变成被动语态了。这题考点应该是分词短语trying to ……做定语吧。

困难是弹簧

同毅DianaMM，呵呵，挣外快都是自愿的说。