[ 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:
Compound and Complex, Conditionals › ViewWhat is the coordinating conjunction in the sentence: “I wanted to go to the party, but I had too much homework”?
A. wanted
B. go
C. but
D. had
Grammar › View
I didn’t go … yesterday. I stayed home all day.
A. Anywhere
B. Somewhere
C. Everywhere
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