. 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 › ViewWhat does “write” mean in this sentence?
I will write my brother a letter.
A. To put words on paper
B. The opposite of left
C. A tool used for measuring
D. To clean something
a, an, the, Zero Article › View
The only way to change ___ account username is by canceling __ existing account and signing up for ___ new account with ___ desired username.
A. A, an, the, no article required
B. A, the, no article required, an
C. The, the, a, an
D. The, the, a, the
E. An, an, a, a
My 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
