[ Perfect Tenses ]
Bill ________ (train) new recruits for many years when he finally received recognition for his efforts.
A. had been training
B. has been training
C. had trained
D. has trained

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Noun, Verb, AdjectiveAdverbs and Time ExpressionsTenses: Present simple, Past Simple, Future SimpleIrregular verbsGrammar speak,talk,say,tellGender and GrammarQuestion TagWould rather/ would prefer/ would likeGrammar - direct/indirect objectsSimple TenseOther quiz:
Adjectives and Adverbs › ViewWhich word is an adverb? “The dancer moved gracefully.”
A. dancer
B. moved
C. gracefully
D. none
Vocabulary › View
make into a whole or make part of a whole
A. Indicate
B. General
C. Incorporate
D. Interact