Topics: Modal Verbs & Perfect Infinitive
. They _______ (go) to bed early because they look very tired today.
A. can’t have gone
B. must have gone
C. should have gone
D. might have gone
Select your answer:

Random Topics:
Passive Modals, Impersonal PassiveFrequencySimple Present & Present ProgressiveIf/Unless - Conditional type 1Relative Clauses and Past PerfectVerb Types and TensesCan vs CouldConditional Sentences Type I, IIConjunctions - ConnectorsSecond and Third ConditionalOther quiz:
Grammar › ViewCoal, gas and oil are _____ forms of energy that cannot be replaced after used.
A. unlimited
B. renewable
C. nonrenewable
D. contaminated
Tenses › View
What ______ you doing now?
A. are
B. do
C. did
D. were
