[ Modal Verb ]
Find a more polite form of the modal verb?
A. Have to
B. Must
C. Could
D. May/Might

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Future FormsAdverb & Compound SentencesAdjective and AdverbSingular and Plural NounsTOEFLLanguage Features of an Opinion ArticleFormal & Informal Words1st ConditionalConnectorsPassive Voice in Past and Present TenseOther quiz:
Passive Voice › ViewThis problem __________ by Miss Lan yesterday
A. was solved
B. is solved
C. will be solved
D. solves
Phrasal Verb › View
The firemen worked hard to put ______ the fire.
A. out
B. up
C. off