Question at position 17 17. In which sentence did the boy's girlfriend come over while he was cleaning? (Choose the sentence that is grammatically correct & shows this meaning) He was cleaning when she coming.He cleaned when she came over.He cleaning while she visiting.He was cleaning when she visited.单项选择题
A
He was cleaning when she coming.
B
He cleaned when she came over.
C
He cleaning while she visiting.
D
He was cleaning when she visited.

Question

Question at position 17 17. In which sentence did the boy's girlfriend come over while he was cleaning? (Choose the sentence that is grammatically correct & shows this meaning) He was cleaning when she coming.He cleaned when she came over.He cleaning while she visiting.He was cleaning when she visited.单项选择题

A

He was cleaning when she coming.

B

He cleaned when she came over.

C

He cleaning while she visiting.

D

He was cleaning when she visited.

BlackTom AI · Accepted Answer

Question restatement: In which sentence did the boy's girlfriend come over while he was cleaning? (Choose the sentence that is grammatically correct & shows this meaning)

Option 1: 'He was cleaning when she coming.' This is incorrect because after 'when', the verb 'come' should be in a past tense form to match the time frame. The correct continuous past form would be 'was coming' or, more naturally in this context, use the past simple 'came' to indicate an interruption. Therefore, 'coming' is ungrammatical here.

Option 2: 'He cleaned when she came over.' This sentence is grammatically correct and uses past simple for both actions. It indicates that his cleaning happened at the time she came over, but it describes two discrete past actions rather than a continuous past action occurring during another past action. It conveys a related meaning but not the ongoing action during the cleaning as emphasized by 'was cleaning.'

Option 3: 'He cleaning while she visiting.' This is ungrammatical. The verb 'cleaning' lacks a helping verb (should be 'was cleaning'), and 'visiting' lacks a corresponding auxiliary (should be 'was visiting' or 'visited'). As written, it violates standard English syntax.

Option 4: 'He was cleaning when she visited.' This sentence is grammatically correct. It uses the past continuous 'was cleaning' to express ongoing action in the past, and the past simple 'visited' to denote the completed action of visiting that occurred during that ongoing activity. This construction cleanly captures the meaning 'she came over while he was cleaning.'

Summary of correctness reasoning: The intended meaning requires an ongoing past action ('was cleaning') simultaneous with a past action by the girlfriend ('visited' or 'came over'). Among the options, only Option 4 preserves the continuous aspect of his cleaning while aligning with the timing of her visiting, making it the grammatically correct and meaning-appropriate choice. Option 2, while grammatically valid, portrays two separate past events without the continuous aspect, which reduces its alignment with the requested meaning. Options 1 and 3 are grammatical mistakes that violate tense or structure.

Note on nuance: If you specifically want 'came over' as the phrase for the girlfriend’s action, you could rephrase the correct structure as 'He was cleaning when she came over,' which would still be correct and natural; however, in the given option list, 'He was cleaning when she visited.' best matches the continuous action during her arrival using the supplied choices.

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