作业帮关于新概念英语第一次121课新概念英语第一册121课 经理问Which books did you buy?和Did you serve this gentleman half an hour ago?为什么没有用过去式呢.之前问顾客who served you?都用了过去式
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关于新概念英语第一次121课新概念英语第一册121课 经理问Which books did you buy?和Did you serve this gentleman half an hour ago?为什么没有用过去式呢.之前问顾客who served you?都用了过去式
关于新概念英语第一次121课
新概念英语第一册121课 经理问Which books did you buy?和Did you serve this gentleman half an hour ago?为什么没有用过去式呢.之前问顾客who served you?都用了过去式
关于新概念英语第一次121课新概念英语第一册121课 经理问Which books did you buy?和Did you serve this gentleman half an hour ago?为什么没有用过去式呢.之前问顾客who served you?都用了过去式
Did you serve this gentleman half an hour ago?
Which books did you buy?
怎么不是过去式?
都用了表示过去式的助动词did,当然是过去式,用了助动词,动词就得还原,所以是buy,serve
Which books did you buy?和Did you serve this gentleman half an hour ago? 就是过去式啊。语法要求：有了助动词did,原来的bought和served都得还原成动词原形。
过去式和现在式的用法很多看语境，外国人并不是很在意那些，就是国人太在意 所谓的清
英格力士