Complete the following sentence in negative past perfect continuous.
Susan __________________ a book, before her mom played the piano.
A. read
B. wasn’t reading
C. has been reading
D. hadn’t been reading

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Kinds of NounsPast Perfect SimpleDependent PrepositionsPast Perfect and Past Perfect Continuous-ing &-ed AdjectivesAdverbs, Infinitives, Definite ArticleGrammar : Structural Common ErrorsModals and ResponsibilitiesPrepositions of MovementTAG QuestionsOther quiz:
Relative Clause › ViewI have to learn new words. They are very difficult.
A. I have to learn new words that are very difficult.
B. I have to learn new words that they are very difficult.
C. I have to learn new words who are very difficult.
D. I have to learn new words whom are very difficult.
Grammar › View
Choose the Noun in the sentences.
My Mom is beautiful.
___
A. beautiful
B. is
C. Mom
Past Tense › View_____ they ______ to the Quy Nhon beach last Saturday?
A. Did/ goes
B. Do/ go
C. Did/ go
Past Simple & Past Perfect › View
I _______ (saw) the man as I _______ (cross) the road.
A. saw / was crossing
B. was seeing / was crossing
