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general::
Phrase(s): Could you hold? [and] Can you hold?; Will you hold?
Do you mind if I put your telephone call on hold? • "Could you hold?" asked the operator. • Sue: Hello. Acme Motors. Can you hold? Bob: I guess. Sue (after a while): Hello. Thank you for holding. Can I help you?
McGrawhill's American Idioms And Phrasal Verbs