Final answer:
Note cards should be used only for reference when giving a speech in English class.
Step-by-step explanation:
The subject of this question is English. The question is asking about note cards and their use while giving a speech.
The correct answer is: only be used for reference.
Numbered note cards can be helpful in keeping track of the order of your speech or in case they get mixed up. Writing every sentence of a speech on a note card can be overwhelming and make you rely too heavily on reading from the cards.
Learn more about Note cards and their use when giving a speech