[ Past Tenses ]
When I started playing the guitar, John ………. it for 10 years.
A. had already been playing
B. was already playing

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Word Form & Verb TenseSubject and Verbs AgreementSome & AnyFirst & Second ConditionalFirst Conditional, Future Time ClausesModals and VocabularyIrregular Plural NounsIN, ON & ATGrammar (either..or.. and neither..nor..)Phrasal Verbs and Verb FormsOther quiz:
General Quiz › ViewHe is _______ engineer.
A. a
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Past Modals › View
I haven’t got my wallet. I ____ left it at home.
A. should have
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