[ Grammar & Vocabulary ]
. You are explaining a decision you made in the past that led to a positive result. Which sentence is correct?
A. Had I known about the traffic, I would have left earlier.
B. I have left earlier if I knew about the traffic.
C. If I knew about the traffic, I would leave earlier.
D. If I had known about the traffic, I would have left earlier.

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Auxiliary ModalDirect and Indirect QuestionNarrative Tenses & ConditionalsFuture Perfect vs Future ContinuousModals AuxiliaryIndirect SpeechPronounGrammar and SyntaxLexico and GrammarModals of Obligation and PermissionOther quiz:
Grammar › ViewComplete the sentence using the correct form of the verb in Present simple:
Allison _______________ new shoes every month.
_
A. buy
B. buys
C. bought
D. buying
Everyday vs. Every Day › View
One of my friends used to call me … and talk for more than an hour.
a. everyday
b. every day
many birds will suffer_____ sea levels continue to rise
A. if
B. unless
Tenses › View
They ____ to the gym every Saturday.
A. goes
B. go
C. going
D. gone
E. went
