[ Modal Verbs of Certainty and Possibility ]
He _____ studying because I didn’t see him outside.
A. can have been
B. must have been
Random Topics:
Grammar - Imperatives and LetGerund, Infinitive & ModalsModals and Modal PerfectsGrammar - help/have/let/makeModals for Advice, Obligation/Prohibition, Necessity and Lack of NecessityFuture Tenses and Modals-ed or -ingLanguage Features of an Opinion ArticlePresent, Past, Present Perfect and Comparative-ed/-ing AdjectivesOther quiz:
Grammar › ViewI think she … win the prize. She’s the best.
A. will
B. won’t
Grammar › View
He ……. tired
A. am
B. is
C. are
D. a
Vocabulary › View_______________you want my advice, I will be in my room.
A. Even if
B. Only if
C. In case
Third Conditional › View
If she ……………… to Greenland, she ……………… some igloos.
A. Had been, would have seen
B. Had been, had seen
C. Would have been, had seen