Here are the participles and the nouns they modify in the provided sentences:
-
Participle: signed
Noun: order
(The participle "signed" modifies the noun "order.") -
Participle: empty
Noun: it (referring to "it" as "almost empty")
(The participle "empty" is used as an adjective describing "it.") -
Participle: singing
Noun: voice
(The participle "singing" modifies the noun "voice.") -
Participles: designed, built
Noun: it (referring to whatever "it" is that had been designed and built)
(The participles "designed" and "built" modify "it.") -
Participle: melted
Noun: toaster
(The participle "melted" modifies the noun "toaster.")
If you have more sentences or need further assistance, feel free to ask!