[ Modals and Responsibilities ]
They are ___ cleaning the classroom.
A. must
B. need to
C. have to
D. responsible for
Select your answer:
Random Topics:
Prepositions and Adverbs-ing &-ed AdjectivesGrammar - could / could notClausesInversions and SubjunctiveGerundsSubordinating and Coordinating ConjunctionsPassive Modals, Impersonal PassiveDeterminersOther quiz:
Tenses › ViewIt _______ too much right now.
A. Is raining
B. Rains
C. Rained
D. Has rained
Grammar › View
Was / Were you working at seven o’clock last night?
A. Was
B. Were