[ 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
Random Topics:
Present Tense vs Past TenseTense,noun,preposition,quantityGrammar & VocabSubjunctivesIndefinite ArticleQuantifiers MixPassive Voice, Modals of Deduction and First ConditionalCountable QuantifiersPrepositions and ConjunctionsComperative and SuperlativeOther quiz:
Grammar › ViewSome teens have the awful habit of smoking. ________________, I don’t like it at all.
A. however
B. or
C. so
Relative Clause › View
The boy ___________ watch had stopped didn’t know that he was late.
A. whose
B. which
C. where
Tenses › ViewMy sister ____ her clothes five times before she finally chose her first outfit.
A. changes
B. changed
C. had changed
D. have changed
E. change
Tenses › View
Chinese merchants ____ trade in Tibet since 1950, when China ____ the country.
A. dominate / was invading
B. dominated / invaded
C. were dominating / has invaded
D. have dominated / invaded