“用法”各异
used to;  be used to; get used to
1. Computers ______ do many things for people now.
2. She ______ work in a small factory before she came here.
3. The boss is glad that the new workers ______ hard work now.
4. He asked if I ______ driving on the left while I was traveling in England.
5. They ______ play golf, didn’t they？
Key: 1. are used to    2. used to    3. are / get used to
4. was / got used to     5. used to
解析:
used to意为“过去常常”,后接动词原形；常用来表示今昔对比，暗含不那样做了（如2和5）。
be used to接动词原形， 表示“被用来做某事”（如1）;而be / get used to后接名词、代词或动词-ing形式，表示“习惯于;适应”（如3和4）。
“能力”有别
ability; capacity; potential
1. The health center serves all patients, regardless of their ______ to pay.
2. One of their children has the ______ to be a brilliant scientist.