[ Tenses ]
All the students ________ the class work when the teacher came in.
A. are doing
B. were doing
C. will be doing
D. have done
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Zero and First ConditionalsPrepositions after VerbsModals with Perfect InfinitiveModals of Speculation and DeductionAdjective and AdverbConnectorsSimple Past vs Past Continuous TenseActive-Passive VoicesApologizingConditional Sentence Type 0-3Other quiz:
Subject Verb Agreement › ViewThe students in my school _____________science when it involves a field trip to the zoo.
A. enjoy
B. enjoys
Tenses › View
He ________ for twenty years before he retired last year
A. had been teaching
B. has taught
C. was teaching
D. has been teaching