[ Progressive Perfect and Simple Verb Tenses ]
What are the helping verbs for present perfect?
A. Is/are
B. was/were
C. has/have
D. had
Select your answer:
Random Topics:
Grammar Past and Future TenseAuxiliaries VerbAdverbs of frequencyPast Simple or Past ContinuousHave GotModal Verbs & Reflexive PronounsPhrasal Verbs and Verb FormsNouns FormationComparative & Superlative AdverbsOther quiz:
Vocabulary › ViewWhat does ‘massive’ mean?
A. That you cannot avoid or prevent
B. larger in size
C. A very bad accident
D. The highest point of something, especially the top of a mountain
Past Perfect Tense › View
I went to bed after I ___________ off the television.
A. switched
B. has switched
C. had switched