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QUESTION
4.Identify the verb form in the following sentence.We had been warning of the potential danger for years.A.past perfect progressiveB.present progressiveC.present perfect progressiveD.past progressive
4.
Identify the verb form in the following sentence.
We had been warning of the potential danger for years.
A.
past perfect progressive
B.
present progressive
C.
present perfect progressive
D.
past progressive
