[ Grammar ]
__ play professional tennis, you must be extremely fit.
A. Couldn’t
B. Will able to
C. To be able to
D. Could be able to

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Grammar-Present Continuous-Sentence MakingModal Verbs of ObligationTransitive and Intransitive VerbDistinguishing Future TensesQuestion Tags in Verb TensesConditionals Type ICorrelative conjunctionsPast ParticiplesMaritime Vocabulary and GrammarModals and ResponsibilitiesOther quiz:
Grammar › ViewYou _________ ride my bike everyday.
A. don´t
B. doesn’t
Tenses › View
Is she _____ a new book at the moment?
A. write
B. writes
C. written
D. writing
