[ Grammar ]
Mark __________ drying the dishes by the time Sam arrived.
(past perfect)
A. Had finished
B. Was finished
C. Have finished

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Personal PronounModal Verbs & Perfect InfinitiveModalSimple Past Tense and Past Perfect TenseVocabularyPresent, Past, Present Perfect and ComparativePerfect ModalsActive-Passive VoicesPresent Simple and Present ContinuousVerb Tenses (Progressive, Perfect)Other quiz:
Grammar › ViewThe referee _____ when the player kicked the goalkeeper
A. wasn’t looking
B. hadn’t look
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unaware of; unconcerned; inattentive
A. spontaneous
B. dogged
C. keen
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Articles › ViewDoctors say that we shouldn’t sit ………. for a long time.
A. in the sun
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Helen: “What were you ________ at 10p.m last night?” Susan: “I ______ on my Math project at that time.”
A. do/ works
B. do/ worked
C. doing/ was working
D. does/ works
