do和did的用法：
根據語義的需要，do和did后面既可接名詞作賓語，也可接動名詞作賓語。
接名詞作賓語：I do my homework in the evening. 我晚上做作業。
接動名詞作賓語：It takes ages to do the shopping. 買東西真花時間。
Did the welfare state remould capitalism to give it a more human face?
福利國家是否重新塑造了資本主義制度使其看上去更具人情味?
How did he know what she was thinking? — it was a liberty!
他怎么能知道她在想什么?太自以為是了!
The dark and narrow hiding place did not avail to save the fugitives.
黑暗狹窄的藏身地并未能挽救那些逃亡者。