[ Auxiliary Verbs ]
Oliver and his brother ___ to take care of their sick father.
A. has
B. have
Random Topics:
PrepotitionsNoun ClausesRelative ClausePresent Simple/AffirmativeUse of Prepositions or ConjunctionsGerund & InfinitivePresent Tense vs Past TenseLexico and GrammarPresent Perfect, Present Simple, Present ContinuousGrammar - to beOther quiz:
Grammar › ViewI think that shopping mall ______ mall in our city.
A. best
B. the best
C. is the best
Modals › View
Whatever you do, you ________________ touch that switch. It’s very dangerous.
A. mustn’t
B. don’t have to
C. doesn’t have to
Past Simple › ViewShe ……… tennis last week.
A. plays
B. doesn`t play
C. didn`t played
D. didn`t play
Vocabulary › View
a physical system that does not allow transfer of matter in or out of the system
A. conservation of matter
B. closed system
C. reactant
D. chemical reaction