Question

请教高中英语问题

1.What do you think_____ the safe ,the hammer, a saw or any others?
A. was used to open B.used to open C.was used to opening D. used to opening
2.Helen is a mere washer woman, yet she's now buying a big house.
Yes. Because she's always saved _____.
A. what little she earns B.how little she earns C.for little she earns D.with little she earns
希望有详细解答，谢谢！

Answer 1

A （do you think 是插入语 可省略不看）
句意：你觉得用什么开比较安全？ 锤子？斧子还是别的？
1, be used to do被用于，如：This knife can be used to cut things.这把刀能够被用于切东西。
2 used to表示过去常常做某事.
3 be used to + doing： 对……已感到习惯，或"习惯于"，to是介词，后需加名词或动名词
4 used to doing无用法
B
1 what引导句后应加名词 what little money she earns
句意 因为他赚再少的钱也要存起来 no matter how little she earns she's always saved