[ Grammar ]
It’s important to take care of your teeth. You should […] by a dentist at least twice a year.
A. have checked them
B. have them checked
C. check them
D. having them checked

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Present Progressive (Future)TensesMesopotamia VocabularyPronouns and QuantifiersPast form of ModalsVerb PhraseNoun, Adjective, and Adverb ClausesPronouns and AdverbsPreposition of DirectionConditionals and Modals of ProbabilityOther quiz:
Grammar › ViewOliver Twist _____ by Charles Dickens.
A. wrote
B. was written
C. had been written
D. will be written
Countable Vs Uncountable Nouns › View
We haven’t got……toothpaste but we have got ……..toothbrushes.
A. some/some
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A. was-decided
B. is-decided
Grammar › View
Personnel has had all the references _________.
A. be checked
B. checking
C. checked
D. checks
