[ Passive Voice with Modals ]
This problem ___ immediately to avoid further damage.
A. has to be solved
B. has to solve
C. has solved
Select your answer:

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Has and HaveSynonym and AntonymSubjunctiveVerb TensesSimple Past and Past Progressive TensesWord FormationTOEFL Adjective and AdverbAlthough, Though, In spite of, DespiteIndefinite and Reflexive PronounsGerund NounOther quiz:
Grammar › ViewAmy and I _______ the offer to go snowboarding.
A. accept
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Janet ____ a film on TV last night
A. watch
B. watches
C. watching
D. watched
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