[ 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:
Conjunction › ViewWe have to clean our bath tub regularly … mosquitoes do not lay their legs there.
A. to
B. in order to
C. so that
Prepositions › View
Their ideas differ ___ each other.
A. in
B. from
C. with
D. to
E. on
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
