[ Modal Verb ]
You _________ have worked so hard last week. You look so tired now.
A. must not
B. ought not to
C. can’t
D. would

Random Topics:
Coordinate ConjunctionLanguage Features: Reflective ArticleVerb PhraseWishesIdiom and TensesPhrase and ClauseDefinite ArticlesPresent Perfect Continuous TenseVerb and PrepositionPast Simple and Past Continuous TensesOther quiz:
and, so, but, because › ViewI have a headache _________ a runny nose.
A. and
B. but
C. or
Wish - beginner › View
I wish I _____________ hard-working.
A. were
B. had been
C. will be
D. am