[ Tenses ]
I _____ the answer to the question.
A. knows
B. knew
C. known
D. knowing

Random Topics:
Grammar Comma UsageEmployment VocabularyModals: Possibility, Necessity, ExpectationNarrative Tensesand, so, but, becauseThe First Conditional (if/unless)Grammar Past and Future TenseThe Simple Present TensePrepositions & Modal VerbsComparative and Superlative AdverbsOther quiz:
Quantifiers Mix › ViewI have _______________ magazines for you.
A. any
B. much
C. some
Grammar › View
Choose the correct word that completes the sentence.
Please __________ me go on a field trip to the Colonial Museum
_____
A. let
B. leave
Modals of Probability › ViewI …………………. watch a programme about animals tonight.
A. might
B. can’t
Vocabulary & Grammar › View
My mother ________ in the supermarket all afternoon.
A. has been working
B. has worked
C. is working
D. works
