[ Modal Verb in Passive Voice ]
Energy _______________ by everyone.
A. can conserve
B. can conserving
C. must be conserved
D. must conserve

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Mixed TensesCity PlacesPrepositions after Verbs and AdjectiveSimple and Continuous Present TenseSubject and Verb AgreementModal PossibilitiesConjunctions, Interjections and DeterminersPerfect and Past TensesDEGREE COMPARISONPassive Voice, Modals of Deduction and First ConditionalOther quiz:
Modal Verbs › ViewI’m not going to pay five pounds for a coffee. You ______________ be joking!
A. should
B. must
C. have to
Modals › View
I think you _ tell your mom about it.
A. must
B. should
C. need to
Grammar and Vocabulary › ViewWhat _____ on your last holiday?
A. you did
B. did you do
C. did you
Adverbs of Frequency › View
I went to a restaurant last week, but I ______ eat at home
A. usually
B. rarely
C. always
