[ Modal Verbs ]
They _______have forgotten about the appointment.
A. can
B. can´t
C. might
D. has to

Random Topics:
Past Tense vs Present Perfect TenseGrammar - Present PerfectGrammar Like & Linking VerbNouns FormationAdverbs of Manner, Likes and PreferencesComparison DegreeGrammar: SyntaxModals and Present TensesGender and GrammarGrammar - Place and MovementOther quiz:
Prepositions › ViewComplete the sentence with the right preposition.
She doesn’t believe ___ coincidencies.
A. in
B. on
C. of
Perfect Modals › View
He _______________ (finish) a 500-page book in a single day!
A. must have finished
B. could have finished
C. can’t have finished
D. should have finished
Verb Tenses and Modals › ViewThey decided to stress the planting of trees ___ the neck-deep flood was experienced.
A. after
B. though
C. where
D. unless
Phrase or Clause › View
The long and winding road.
A. Phrase
B. Independent Clause
C. Dependent Clause