" Yes The past (did) is more common in conversations. It seems to have a more polite tone. It asks about prior knowledge.
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youngbutsInstead of 'Did' in (b), could I use "Do you know anyone under five should not take this?"Yes The past (did) is more common in conversations. It seems to have a more polite tone. It asks about prior knowledge.
youngbutsAnd, why does the speaker B use the past progressive like 'was just making sure' in the last one (d)?
youngbutsInstead of 'Did' in (b), could I use "Do you know anyone under five should not take this?"Yes, but that sounds more confrontational. In