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

Random Topics:
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:
Grammar › View“I wonder why Shane didn’t call the authorities?”
“I’m sure he would have called them if he ___ what would happen.”
A. knew
B. would have known
C. had known
D. will know
Tenses › View
What tense is the following sentence?
She hit the boy last night.
A. Simple Past Tense
B. Present Perfect Tense
C. Present Continuous Tense
D. Past Continuous Tense
E. Simple Future Tense
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
