[ Tenses ]
Which sentence is not past perfect continuous tense ?
A. He had been waiting since daybreak.
B. If she had gone there yesterday, she would have seen you.
C. It had been raining all night.
D. My father had been working hard all day.

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Adjective + to + VerbWorld Literature VocabularyComparison and ModalsBasic TensesFamily VocabularyPresent Simple: affirmative, negative, interrogativeVerb TenseGender and GrammarVerbal and Appositive PhrasesPast ParticiplesOther quiz:
Grammar › ViewI planted a sunflower inside a cup.
What is inside?
A. preposition
B. adjective
C. verb
D. pronoun
Vocabulary › View
__________ is a technique in which scientists calculate the age of a sample based on the amount of remaining radioactive isotopes it contains
A. isotope dating
B. retroactive dating
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Grammar › ViewWe are going to visit / visited the museum tomorrow.
A. visit
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Tenses › View
They ____ for Japan at 10.30 tomorrow.
A. will be leaving
B. have left
C. will have left
D. will leave
