fall asleep 入睡 fall behind 落后
fall down 跌倒、垮下来 fall in love with 爱上
fall into 落入、陷入 fall to pieces 崩溃、解体
fall into the habit of 养成……习惯
( )Alone in London, without friends, work, or money, Shelly ____ great difficulty.
A. put into B. fell into
C. turned into D. broke into