[ Past Perfect Tense ]
________________Jon went to elementary school, he had already learned to read and write by himself.
A. Had
B. By
C. By the time
D. Because
Select your answer:

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Adverbial Clause, Noun ClauseGrammar Present Perfect (ever never)Aspect or tenses of VerbsGrammar Comma UsagePrepositions & Modal VerbsSentence or Sentence FragmentSimple Verb TensesGrammar ErrorsGrammar - Present and Past PassiveReported Speech and SubjunctiveOther quiz:
Grammar › Viewhe hasn’t visited me. which one is correct?
A. past tense
B. future tense
C. present perfect tense
D. present continuous tense
Grammar › View
We first …………………. each other in London in 2006.
A. have met
B. meet
C. had met
D. met
