[ Grammar ]
Fill in the blank:
Dinosaurs existed at the beginning of time.
These times were called ___historic.
a. non-
b. pre-
c. un-
d. re-

Random Topics:
Definite vs Zero Article Abstract NounsModals - Reported Speech - ConditionalsRelative Clauses and etcInfinitivePassive to ActiveMust or Mus notDeterminersModals of AdviceVerbs & AdverbsAdverbOther quiz:
Present Perfect Tense › ViewHow long _______ (you/know) ______ each other?
A. did … know
B. have … known
C. do … know
Gerunds, Infinitives and Modals of Possibility › View
I hope ___ my lost wallet.
A. find
B. finding
C. to find
D. finds
Relative Clause › ViewThe men _______ lives next-door are English.
A. who
B. whom
C. which
D. whose
Relative Clause › View
The extent ____the stock market is affected by the day-to-day pronouncements of the President of the United States is astonishing.
A. which
B. to which
C. where
D. when
