You should notify us at least two weeks ……… the expiration date,
A. prior
B. after
C. before
D. though

Random Topics:
Grammar - First ConditionalPronouns/ Present TenseCompound SentencesPersonal pronouns + possessive adjectives + Introgative pronounsPast Simple and Past ContinuousRoot WordGrammar ClausesAlong & AgainstRelative Clauses and Past PerfectFuture Continuous TenseOther quiz:
Simple Past Tense › ViewDad _________ me a bike for my birthday last year.
A. buy
B. buys
C. bought
D. buying
Relative Clause › View
I first learn English from a book. I’ve just reread it.
A. I first learn English from a book who I’ve just reread it.
B. I’ve just reread the book which I first learned English from.
C. I first learn English from a book whom I’ve just reread it.
D. I first learn English from a book whose I’ve just reread it.
Grammar › View‘What time are we expected?’ ‘ ____ lunchtime.’
A. In
B. On
C. At
Past Perfect Simple & Past Perfect Continuous › View
Which of the sentences below uses past perfect simple?
A. The man had not eaten for days before he fainted by the roadside.
B. The man had not been eating for days before he fainted by the roadside.