As early as the 1940s, scientists (10. understand) that many kinds of wild animals faced extinction. Since that time, zoos (11. try) to save many endangered species, but relying on zoos to save species such as the rhinoceros is not enough. In the 1980s, the number of rhinos in the world (12. reduce) from 10,000 to 400. Many rhinos (13. kill) by poachers, but many also (14. die) in captivity. Zoo breeding programs for rhinos have not been successful. The best method of conservation (15. be) to leave them in their natural habitat. Number 12

As early as the 1940s, scientists (10. understand) that many kinds of wild animals faced extinction. Since that time, zoos (11. try) to save many endangered species, but relying on zoos to save species such as the rhinoceros is not enough. In the 1980s, the number of rhinos in the world (12. reduce) from 10,000 to 400. Many rhinos (13. kill) by poachers, but many also (14. die) in captivity. Zoo breeding programs for rhinos have not been successful. The best method of conservation (15. be) to leave them in their natural habitat.

Number 12

Jawaban yang benar adalah: was reduced.

Mari simak pembahasan soal berikut ini!

Soal meminta kamu melengkapi kalimat pada teks dengan bentuk kata kerja yang benar.

Makna kalimat soal adalah: Pada 1980-an, jumlah badak di dunia (12. mengurangi) dari 10.000 menjadi 400.

Dari makna kalimat, kita tahu bahwa bagian rumpang harus dilengkapi dengan kata kerja pasif yang bermakna “berkurang”. Itu berarti bahwa kalimat soal termasuk jenis kalimat pasif Simple Past Tense (ada penggunaan keterangan waktu “In the 1980s).

Struktur kalimat pasif Simple Past Tense ialah sebagai berikut:

“S + Was/Were + V3 + by agent/C.”

Karena subjek kalimat “The number of rhinos” termasuk singular subject, maka subjek kalimat tersebut harus diikuti dengan To be “was” dan kata kerja “reduce” harus diubah menjadi “reduced” (V3).

Untuk diketahui, “The number of” selalu diikuti dengan plural countable nouns (kata benda jamak yang bisa dihitung).

Berdasarkan penjelasan di atas, maka kalimat utuh soal yang benar menjadi:

“In the 1980s, the number of rhinos in the world was reduced from 10,000 to 400.” (Pada 1980-an, jumlah badak di dunia berkurang dari 10.000 menjadi 400.)

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Jadi, jawaban yang benar adalah: was reduced.

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