The past perfective progressive and the past perfective can be used interchangeably in many cases.-未来题库

The past perfective progressive and the past perfective can be used interchangeably in many cases.

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The past perfective progressive and the past perfective can be used interchangeably in many cases.

A.正确

B.错误

正确答案：正确

Tags:perfective past interchangeably

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1.The function of auxiliary “（）” is to help the main verb to form the perfective or the perfective progressive aspect.
2.The past tense forms of auxiliaries do not necessarily express past time.
3.In the sentence He worked as a teacher all his life., the simple past indicate a past habit.
4.The past perfective progressive and the past perfective can be used interchangeably in many cases.
5.The past perfective when used to express hypothetical meanings is called the imaginary use of the past perfective.
6.The “（）” use of the present perfective denotes that an action or state extends over a period lasting up to the present moment, p
7.Americans are past oriented.