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

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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:
Phrasal Verb › ViewI need to _____ my jacket before we go outside.
A. put on
B. put off
C. put up
Phrasal Verbs › View
Before I left home this morning, I put ___ my coat.
A. on
B. off
C. up
D. down
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
