_________then what I know today, I would have saved myself ... | GrammarQuiz.Net

[ Grammar ]

_________then what I know today, I would have saved myself a lot of time and trouble over the years.

A. had I known

B. did I know

C. If I know

D. If I would know

Select your answer:

Random Topics:

Verbal Communication Tenses & Affixes Pronunciation Conjunctions Comparatives - Superlatives Wish clause Transitional Words Present Simple and Present Continuous Tenses Vocab and Grammar GRAMMAR - Could / Could not

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