Fill in the gaps with the verbs in the passive voice. 1. herbarium (to organize) of dried plants. 2. some herbs (to use) in cooking to flavour food. 3. gardeners plant herbs in good soil that (to cultivate). 4. the flowers of poppies (to admire) for their delicate beauty and gracefulness. 5. these remedies (to prepare) in such a way that they are non-toxic and do not cause side effects. 6. saffron (to pick) for its buds and flowers, fennel seeds (to use) in relishes and seasoning. 7. this biological function often (to discuss)