Un kilo de tomates, beaucoup de monde, trop de sucre: all quantity expressions share one rule — quantity + de — and the market is where you train it.
Grammar focus: Quantities and shopping: un kilo de, assez de, trop de · The partitive: du, de la, de l', des. Work through the explanations and tables below, hear the structures in the dialogue, then lock them in with the interactive drills, the writing task, and the speaking task.