[ Subjunctives ]
… 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

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Noun Verb AgreementPresent Perfect - Just, Already, YetModal Verbs in ConditionalsPresent Perfect ContinuousGrammar - Place and MovementAdverbs, Prefixes, and SuffixesFuture PlansNounDescriptionsCohesive DevicesOther quiz:
Past Tenses › ViewHoi Shuen ______ some salt in the soup few minutes ago.
A. put
B. puts
C. putted
D. putting
Grammar - Sentence Structure › View
Which one here is NOT a correct sentence?
A. In my house, I learning English
B. My sister is doing her homework
C. My dad likes cooking
D. My mom never makes pizza