[ Modal Auxiliaries ]
To help protect our oceans and sea life, we ______ solve our plastic waste problem. (obligation)
A. must
B. should
C. may

Random Topics:
Prepositional PhraseModal Verbs for PossibilityPrepositionCan vs CouldContinuous TensesSentence Structure and Verb TensesConditionals and Modals of ProbabilityTo Infinitive or Bare InfinitiveCountable Vs Uncountable NounsFuture - Will and Be going toOther quiz:
Prepositional Phrase › ViewThe doctor is working very hard in the emergency clinic.
A. the doctor
B. very hard
C. in the emergency clinic
D. is working
E. the emergency clinic
Grammar › View
John _________ listen to music.
A. doesn’t
B. don’t
C. not
Tenses › ViewA completed action in the past
A. Simple past
B. Present continuous
C. Past perfect progressive
Tenses › View
I didn’t realise that I ________________ my umbrella on the bus until it started to rain.
A. left
B. have left
C. had left
D. was leaving
