How can I ask to say a full sentence?
If a speaker said only a part of a sentence, but I want him to say the whole sentence.
Can I ask ,"Could you tell me it in a full sentence, please?
Could you say the full sentence, please?
Could you say that in a full sentence please?
Could you tell me that in a full sentence please?
Using 'it' is not correct, although people will probably understand what you mean.