[ 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:
Modal Verb › ViewJohn, you ___________________ speak so quickly. Nobody can understand you!
A. Mustn’t
B. Must
C. Should
D. Don’t have to
Modal Verbs › View
Danuta ___ learn English when she got the job with the American company.
A. had to
B. will have to
C. must
Vocabulary › Viewto warn gently but seriously
A. Sancrimonious
B. Laxity
C. Admonish
D. Inextricable
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