Thank you for using the Jiskha Homework Help Forum. Be sure you have a good French to English/English to French dictionary. It depends upon the part of speech (how it is used in context and often when we don't use it in English, you need it in French, for clause-relater que):
demonstrative adjective, that/those = ce, cet, cette, ces
pronoun, that one = celui-là/celle-là/ceux-là
demonstrative pronoun, that, those = celui, etc.
relative pronoun = qui, que
neuter pronoun = cela, ça (short form)
conjunction = que