Attempts to find a _______________(解决办法)have failed.
make sb./sth. free ______使某人/某物摆脱……
be confused ______对……不解
prefer sth._______ sth.与某物相比更喜欢某物
I could really use a small calculator like that one for my ______(统计数字) homework.
They were driven by poverty and ______(饥饿) to steal.