Dia membeli tepung terigu dan minyak dalam jumlah yang banyak.

English Translation

She bought flour and oil in quantity.

“Tepung terigu” means “wheat flour”. The cloze-word {{terigu}} refers only to “wheat” or “unprocessed rice”.
“Flour” in English refers to not only grinded wheat but also any grinded food made of some other raw materials such as potatoes and seeds. The English sentence should be revised.