1) _____ they studying for the test yesterday? a) Are b) Were c) Was d) Did 2) The dog _____ not sleeping on our sofa last night. a) wasn't b) didn't c) was d) isn't 3) My cousin _____ at our grandmother's house last month. a) isn't b) were staying c) is staying d) was staying 4) I _____ my dinner when you called.  a) were eating b) am eating c) was eating d) wasn't eatting

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