[ Perfect Tenses of Verbs ]
Some of the climbers had left for the summit too late.
A. present perfect
B. past perfect
C. future perfect

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Progressive Verb TensesFirst ConditionalVocabulary and Verb TensesPrepositions & Modal VerbsLinking WordsAdjective & AdverbSynonyms and VocabularyPresent Tenses: Simple vs ContinuousPrepositionsGrammar (was, were, could, could not)Other quiz:
Grammar › ViewShe avoids _________ in the rain.
A. walk
B. to walk
C. walking
Grammar › View
Are you used to _________________ at James Lyng School?
A. Study
B. Studying
to warn gently but seriously
A. Sancrimonious
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Progressive Perfect and Simple Verb Tenses › View
Many Cuban Americans, however, are deciding that Miami is now their permanent home.
A. Present Progressive
B. Future
C. Past Progressive
D. Present Perfect