[ Grammar ]
Who ……………………….. the causes of economic crisis ? Economists ………………..
A. does know / know
B. knows / do
C. is knowing / is
D. do know / do
E. did know / did
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Neither/Either/All/NoneWish - beginnerWord FormationWish SentencesArticles - rulesGerunds, Infinitives and ParticiplesGerund after Prepositions and Certain VerbsVerb Types and TensesConditional TypesQuestion Tags in Verb TensesOther quiz:
Grammar › ViewThe window is over the picture. The object of the preposition?
A. picture
B. over
C. window
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_____ river is very polluted. Do you think we can clean up _____ river?
A. The / a
B. A / the
C. The / the
D. A / a
Grammar › ViewThey ___________ to the party last night.
A. goes
B. went
C. going
D. gone
Grammar › View
My sister _______ a book when my brother _______ mineral water last night.
A. read – was drinking
B. were reading – drank
C. was reading – drank