[ Present Perfect and Present Perfect Continuous ]
The Present Perfect Continuous answers the question…
A. how long
B. how much
C. how often
D. how are you

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Verb Tenses › ViewUse the present perfect tense to describe a recent trip.
A. I visited Paris last summer.
B. I will visit Paris next year.
C. I have visited Paris and explored its famous landmarks.
D. I am visiting Paris right now.
Regular and Irregular Verbs › View
What is the action verb in the sentence?
Children are reading books in the library.
A. in
B. the
C. children
D. reading