[ Grammar ]
__________ is essential for breaking down food.
A. Saliva
B. Transport initiative
C. Sauna

Random Topics:
Past Tense vs Future TensePrepositionModal and Relative PhrasesFigure of SpeechGrammar: MorphologyTenses and ArticlesPronouns and Subject Verb AgreementPhrasal Verbs with up and downPresent Simple & Present Continuous TensesPast ContinuousOther quiz:
Modal Verbs › ViewYou ______ turn right when the light is red.
A. don’t have to
B. must
C. mustn’t
D. have to
Personal & Possessive Pronouns › View
He forgot to bring his passport, but Jasmine brought ____________.
A. his
B. her
C. hers
D. my