1. Because …………….. food is as nutritious for a baby as its mother's milk, many women are returning to the practice of breast feeding.
2. Civil engineers had better ………… to use steel supports in concrete structures built on unstable geophysical sites.
3. Three dangerous criminals escaped ……………… prison yesterday.
4. The exam results could …………….. your career.
5. If the oxygen supply in the atmosphere ………….. replenished by plants, it would soon be exhausted.
6. I used to earn …………….. money, but then I lost my job.
7. The practical and legal implications of euthanasia, the practice of causing the death of a person suffering from an incurable disease, are so controversial …………….. it is illegal in most countries.
8. Since lightning was probably significant in the formation of life, understanding it might help us ……………. life itself.
9. Starfishes and sea urchins, members of the echinoderms or spiny skinned animals, are particularly ………………. because of their unusual structures.
10. ………. poetry is more enjoyable when it is read aloud.
11. It is essential that cancer …………. diagnosed and treated as early as possible in order to assure a successful cure.
12. Products in this shop were …………….. arranged, displayed, presented on the shelves.
13. The battle field was a …………….. sight.
14. A vine climbs from one tree to another, continuing to grow and support itself even when the original supporting tree is ……………. longer alive.
15. Parents have great …………….. for their children’s future.
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