[ Passive Voice with Modals ]
This problem ___ immediately to avoid further damage.
A. has to be solved
B. has to solve
C. has solved
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Word Form & Verb TenseDependent PrepositionsAdjective, Adverb, and Noun FormsFOR & SINCEGrammar: wishes and regretsPast Simple (Questions)Present Perfect and Past SimpleTenses and OpinionsSimple Past Irregular & NegativeComparative Adjectives and AdverbsOther quiz:
Grammar › ViewHe ___ (write) an email when his colleague came to his desk.
A. write
B. writing
C. was writing
D. wrote
Grammar › View
He is the __________ student in the class.
A. smarter
B. most smart
C. smartest
D. more smart