帮忙看看我这个句子的语法有没有问题。我刚才造的句。

Question

what determined this choice of English as the Number One Foreign Language in which Chinese students learn the Foreign languages

what determined this choice of English as the Number One Foreign Language which the students of China learn the Foreign languages at home.

Answer 1

有错误，最大的问题是没有谓语。
第一个句子：
首先，what引导的主语从句的表达是正确的，或者说，这个句子只有主语从句儿没有真正的谓语动词。what determined this choice of English as the Number One Foreign Language 是你想表达的句子的主语，后面应该有什么其他你想说的话。 这是你的这两个句子的通病。
其次，Chinese students learn the Foreign languages中的the Foreign languages事不应该有的，因为它们是来做前面the Number One Foreign Language 的后置定语，而且是做learn的宾语，所以不能有。
再次， in which的in是不能有的。in which相当于where，表示在某种程度或者在什么地方。与句子不符。

第二句虽然没有了in，但是前两个错误还是没有改掉。
楼主自己在思考一下我说的这些吧。

Answer 2

what decided the English as the first choice as Foreign Language which is learnt by the students of China at home
我整合了一下你的大致意思。追问

你的句子很棒。 我主要是想您帮我看下我那个句子有没有语法错误。what determined this choice of English as the Number One Foreign Language which the students of China learn the Foreign languages at home.
我觉得这句应该修改为 what determined this choice of English as the Number One Foreign Language which the students of china learn at home.

追答

建议用decide。 what determined this choice of English as the Number One Foreign Language which the students of china learn at home.这句语法错误是没有的。只是determine的主语多为人下定决心。decide则人物皆可。