For example, you had to maintain tenses, and you had to use prepositions, conjunctions, and others properly to create grammatically correct sentences. Say, a sentence like the following.
例如时态,介词,连词和其他一些让你能造出语法正确的句子。
Either of the following two example sentences is correct.
下面的两个例句中的每一个,都是正确的。
Today's question is: Which one of the following sentences is correct?
今天的题目是:下面哪句话是正确的呢?
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