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1·The words are not case sensitive and Subject-Verb Agreement does not matter.

字典里的单词只会有一种词性。

2·The marked effect of number is discussed from the Angle of subject-verb agreement.

从主谓一致的角度考察数的标记性。

3·In the sentence 'They live in the country', the plural form of the verb 'live' is in agreement with the plural subject 'they'.

在They live in the country一句中，动词复数形式live与复数主语they一致。《牛津词典》

4·There must exist agreement of a verb and a subject in person and number.

动词与主语必须在人称和数上一致。