[ Modal Verbs ]
Students…………….listen to the teacher or they won’t understand the lesson.
A. ought
B. could
C. would
D. must
Select your answer:

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Sentence StructuresAdverb Types and TensesPrepositionConjunctions & Cohesive DevicesModal Verbs and VocabularyVerbals and GerundsPast and Present Continuous tenseAsking & Giving AttentionPast Tense and Perfect TenseTOEICOther quiz:
Conditional › ViewIf it rains, we _________ the walk.
A. cancel
B. will cancel
C. won´t cancel
Vocabulary & Grammar › View
Many experts have pointed out the importance of ____________ protection in government policy-making.
A. poisonous
B. environmental
C. obvious
D. proper
