Modal auxiliary verbs - deductions Multiple-choice quiz on modals for expressing degrees of certainty.
Example: She must / may / can't be in the library. Includes modal perfect: He might / must / can't have gone home.
Modal auxiliary verbs exercise - past, present and future time Ten-question multiple-choice quiz. Modals for possibility, obligation, ability relating to present and past time. Includes modal perfect should have etc. Upper intermediate - advanced level learners.