When he was a little boy，he ______ on the farm.A．used to workingB．used to workC
题型：不详难度：来源：
When he was a little boy，he ______ on the farm.| A．used to working | B．used to work | | C．got used to work | D．was used to work |
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答案
| B |
解析
| used to do sth.意为"过去经常做某事"。be used to do sth.意为"被用来做某事"。be/get used to doing sth."习惯于做某事"。 |
举一反三
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