[ Tenses ]
Which example illustrates the use of the past perfect tense?
A. The President will have apologized
B. Doctor Harvey had built the first artificial brain
C. The worker is hammering
D. She has donated extensively to UNICEF

Random Topics:
PassivisationClauses and ConjunctionsDependent PrepositionPresent and Future TensesSentence Adverbs & Third ConditionalInfinitive FormsGrammar TOEFLFuture Simple TenseSimple Present Continuous TensePast and Perfect TensesOther quiz:
Grammar › ViewThe eagle spread _____ wings and soared into the sky.
A. its
B. our
C. his
D. their
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I happened to be in Yogyakarta when they _____ the overpass.
A. are repairing
B. repairs
C. repaired
D. were repairing