[ a, an, the, Zero Article ]
They should be educated in physical education or certified by ___ organization such as the American Council on exercise.
a. a
b. an
c. the
d. no article is needed

Random Topics:
Conjunctive AdverbPrepositions and ConjunctionsIndependent/Dependent Clauses & Relative ClausesPersonal PronounAsking and Giving SuggestionAuxiliary Verbs (be, do, have)Future Tense (will/be going to/p.continuous)Few, a few, little, a littleUsed to & would & Past SimpleAsking and Giving OpinionOther quiz:
Perfect Modals › ViewYou did well on the exams. You _____________ (study) a lot.
A. shouldn’t have studied
B. needn’t have studied
C. can’t have studied
D. must have studied
Grammar › View
I usually ___________ my bags about an hour before I go on holiday. I hate doing it.
A. have
B. make
C. plan
D. pack
Prepositions of Time › ViewI usually do my homework _________ night.
A. at
B. on
C. in
Phrasal Verb › View
Their auntie _____________ them while their mother was in hospital.
A. looked after
B. looked for
C. looked at
D. looked on