1) Yesterday, I _____ play with my friends because I was sick. a) was b) wasn't c) couldn't 2) The cat _____ on the sofa. a) could b) was c) weren't 3) We _____ find our keys. a) weren't b) couldn't c) wasn't 4) My sister _____ happy when she saw her birthday cake. a) was b) couldn't c) were 5) They _____ finish their homework on time. a) couldn't b) were c) wasn't 6) The flowers _____ beautiful. a) wasn't b) were c) could 7) I _____ understand the question. a) wasn't b) weren't c) couldn't 8) The children _____ excited to go to the amusement park. a) were b) could c) couln't 9) He _____ find his wallet. a) couln't b) wasn't c) weren't 10) The teacher ______ angry because I didn't have my homework. a) couln't b) wasn't c) was

could vs was/were

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