Jeanette did very badly on the exam. She _____ harder.a. must have studiedb. should have studiedc. could have studiedd. must studied - Grammar | English Grammar Quiz

Jeanette did very badly on the exam. She _____ harder.

a. must have studied

b. should have studied

c. could have studied

d. must studied

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Conditional Sentence Type 3 Idioms Plurals

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