Question at position 19 19. He ____ (break) his leg when he ____(skateboard). was breaking, was skateboardingbroke, was skateboardingbreak, was skateboardingbreaked, was skateboardingbroke, skateboarding

Question

BlackTom AI · Accepted Answer

Let's examine the sentence pattern being tested: a clause in the simple past (main action) interrupted by a ongoing past action (the when-clause). The natural structure is: He broke his leg when he was skateboarding. Here, the main verb should be the simple past form of break, and the when-clause describes an ongoing action in the past using was + verb-ing.
Option 1: 'was breaking, was skateboarding' uses the past continuous for the main clause, which is not correct for the interrupting action in this construction. It results in a less natural pairing with the when-clause.
Option 2: 'broke, was skateboarding' matches the expected pattern: main clause in simple past (broke) and the when-clause in past continuous (was skateboarding). This is the standard, natural pairing.
Option 3: 'break, was skateboarding' uses the base form 'break' where a past tense is required for the main clause, making it grammatically incorrect.
Option 4: 'breaked, was skateboarding' employs an invalid verb form 'breaked,' which does not exist in English.
Option 5: 'broke, skateboarding' lacks the auxiliary 'was' in the when-clause, producing an ungrammatical construction: the verb form in the when-clause should be in -ing form with 'was' helping.
In summary, only option 2 adheres to the correct tense pattern for a clause where a completed action occurs during a ongoing past activity, yielding: He broke his leg when he was skateboarding.

Question at position 19 19. He (break) his leg when he (skateboard). was breaking, was skateboardingbroke, was skateboardingbreak, was skateboardingbreaked, was skateboardingbroke, skateboarding单项选择题

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Question at position 19 19. He ____ (break) his leg when he ____(skateboard). was breaking, was skateboardingbroke, was skateboardingbreak, was skateboardingbreaked, was skateboardingbroke, skateboarding单项选择题