[ Grammar ]
Which sentence uses the past perfect tense correctly?
A. I have eaten breakfast before I left for school.
B. I had eaten breakfast before I left for school.
C. I was eating breakfast before I left for school.
D. I ate breakfast before I left for school.

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Verb to haveTime Clauses of FutureAction VerbPresent and Past Simple PassiveGrammar and UsageSimple Present and Past TenseGrammar and IdiomsDeterminers & QuantifiersTransitional WordsPresent Perfect and Past SimpleOther quiz:
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A. are becoming
B. become
C. is becoming
D. will become
Comparison › View
Traditional pianos are _________ keyboards for beginners.
A. more suitabler than
B. as suitable than
C. more suitable than
D. the most suitable
Present Progressive (Future) › View__________ your sister_______________ to Europe tomorrow?
A. Is / travelling
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They ____ have finished their homework already; they started right after school.
A. can
B. must
C. would
D. will
