[ 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

Random Topics:
The Future Simple TenseDemonstrative Pronouns and Verb TensesFuture Tenses, Conditionals and ProfessionsSubjective and Objective PronounAdverbial Clauses of Reason / CausePreposition (at,in,on)Quantifiers, Countable and Uncountable NounsGerundComparatives and ConjunctionsPresent/Past/Future Continuous TenseOther quiz:
Present Continuous Tense › ViewThey _______(fly).
A. are flying
B. is flying
C. flying
D. fly
Present Tenses › View
Mom ………………… for Maya for the last hour.
A. is looking
B. looks
C. has been looking
D. has looked
Modal Verbs › ViewHe ______ his son, they look completely different.
a. might be
b. can’t be
c. must not be
Grammar › View
If we had known, ….
A. we would have congratulated him
B. we would congratulate him
C. we will congratulate him
D. we will be congratulating him
E. we congratulate him
