This is the first time I’ve made such a serious mistake.
A. Never will I make a serious mistake.
B. First, I made a very serious mistake.
C. Never before have I made such a serious mistake.
D. The first mistake I made was not a very serious one.

Random Topics:
Auxiliary Verbs & Question TagsHow often - long - much - manyGrammar: SyntaxMixed TensesThere is, There are, Some, AnyAdverbial Clauses of Reason / CauseSubjunctivesComparativesPast Continues TensePrepositions and Preposition PhrasesOther quiz:
Grammar › ViewChoose the correct sentence for using gerund.
A. Fly is the best way to reach your holiday destination
B. We re interested in find out more about city breaks
C. You had better pack your suitcase
D. He admitted stealing my passport
Grammar › View
Which sentence below is correctly punctuated?
A. My sister, the tall one, is about to enter high school.
B. My sister the tall one is about to enter high school.
C. My sister, the tall one is about to enter high school.
D. My sister the tall one, is about to enter high school.
Some vs. Any › ViewI don’t want … … coffee, thank you.
a. some
b. any
Coordinating Conjunctions › View
I need to go to the store, _____ I am feeling very lazy.
A. for
B. but
C. and
D. so
