Fill in the Blanks Fill in the Blanks: Past Continuous vs. Past SimpleOnline version Test your knowledge of past continuous and past simple tenses with this engaging fill-in-the-blanks game! by Graciela Lorenzo 1 'while' saw read walking was reading was rang 'when' The past continuous tense describes actions that were ongoing in the past , often interrupted by another action . For example , 'I a book when the phone . ' In this sentence , 'was reading' is in the past continuous , indicating an action that was in progress . The past simple tense , on the other hand , describes completed actions in the past . For instance , 'I a book yesterday . ' Here , 'read' is in the past simple , showing that the action is finished . To illustrate the difference : 'While I to the store , I a dog . ' The action of walking was ongoing , while seeing the dog was a completed action . Using these tenses correctly helps convey the timing and nature of past events clearly . Remember , the past continuous is often used with or to show the relationship between two past actions .
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