[ 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:
Adjective Clause › ViewThe university … I earned my Bachelor’s degree has built a new bussiness school building.
- which
- where
- that
Grammar › View
we ________ at the gym
A. were
B. was
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
