likes and dislikes

tu aimes les pommes?
oui, j'aime les pommes
non, je n'aime pas les fruits
je préfère les gâteaux

Note the use of the definite article (the) after likes etc!

grammar point (for those that like to know!)

I would like is
je voudrais followed by un/une or du/de la/ des eg
je voudrais une pomme I would like an apple (feminine noun)
or je voudrais de la pomme I would like some apple
je voudrais des pommes followed I would like some apples

I suppose if you were offered a choice between and apple or a banana then you could say
je voudrais la pomme I would like the apple

un gâteau a cake (masculine noun)
du gâteau some cake
le gâteau the cake
les gâteaux the cakes
des gâteaux some cakes

Since the plural of nouns sounds the same ie pomme = pommes and gâteau = gâteaux
it is really important to pronounce the preceding word carefully!