09年七月自考英语语法的考生进来一下

来源:百度知道 编辑:UC知道 时间:2024/05/30 04:44:27
请问最后一道题是什么知识点,我怎么一点都不知道,

简答题
五、简答题(本大题共2小题,每小题4分,共8分)

Answer the following questions.

73. Why can some non-progressive verbs be used in the progressive form?

74. Under what circumstances do we use singular verb with a collective noun denoting animate beings as subject?