last year he didn't （）any letter A、wrote B、writes C、write D、to write四个答案我都不是很明白请大家帮我解释选与不选的原因!

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last year he didn't （）any letter A、wrote B、writes C、write D、to write四个答案我都不是很明白请大家帮我解释选与不选的原因!
last year he didn't （）any letter A、wrote B、writes C、write D、to write
四个答案我都不是很明白请大家帮我解释选与不选的原因!

last year he didn't （）any letter A、wrote B、writes C、write D、to write四个答案我都不是很明白请大家帮我解释选与不选的原因!
C
do 助动词后面加原形 排除ABD

c

C
住动词后面加动词原形
write就是原型，A是一般过去式B是三单式D动词不定式

C
do 助动词后面加原形 排除ABD

选 C
A是“写”的一般过去式
B是在说第三人称单数（他，它和她）时使用。 例：She writes a lot. 她写很多。相比其它的人称，如I， 就用 “write”， 不加 “s". 我写的很多便是：I write a lot.
C是“写”最基本的原型
D是“写”的动词不定式，用法很复杂。。。
看到 last year （去年）感觉应该选，A，过去式是...

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选 C
A是“写”的一般过去式
B是在说第三人称单数（他，它和她）时使用。 例：She writes a lot. 她写很多。相比其它的人称，如I， 就用 “write”， 不加 “s". 我写的很多便是：I write a lot.
C是“写”最基本的原型
D是“写”的动词不定式，用法很复杂。。。
看到 last year （去年）感觉应该选，A，过去式是吧？但是不对~
这个句子里有助动词了（didn't）didn't 是 don't 的过去式。 外国人觉得这个句子前面已经有didn't表明过去式，后面在用过去式不就没必要了嘛。所以用原型：C

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