[ Modal Verbs & Perfect Infinitive ]
. They look very happy in the photos. They ______ their vacation.
A. must have enjoyed
B. can’t have enjoyed
C. must be enjoying

Random Topics:
Tenses and Verb FormsGrammar ClausesComparative and Superlative AdjectiveGrammar and Sentence CorrectionComplex PrepositionsDemonstrative PronounsVerb + InfinitiveApostrophes and GrammarTravel VocabularyPast Perfect Tense and Past TenseOther quiz:
Grammar & Vocabulary › ViewWhich sentence is wrong?
A. I visited the Louvre museum.
B. I visited my best friend.
C. I visited a very popular city.
D. I visited a walk.
Grammar › View
I haven’t see the new Marvel film _____. Do you want to go and see it next week?
A. yet
B. just
C. still
D. already
Grammar › ViewShe ………………………………………….. listening to you.
A. doesn’t
B. isn’t
C. don’t
D. not
Conditional Sentences › View
If I were you, I______ go with my friends
A. will
B. would
