[ 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:
Grammar and Passive Voice › ViewWhich sentence uses the passive voice correctly?
A. The letter was written by Sarah.
B. Sarah was writing the letter.
C. Sarah writes the letter.
D. The letter writes Sarah.
Future Tense › View
I’m afraid you ____ lose your job if you don’t work harder.
A. will
B. are going to
C. will be
D. will have
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
