The Amazone valley is extremely important to the ecology of the earth. Forty percent of the world’s oxygen __ there.
A. Are being produced
B. Are produced
C. Is being produced
D. Is produced
E. Was produced
Jawaban: D
Pembahasan:
The Amazon valley is extremely important to the ecology of the earth. Forty percent of the world’s oxygen ____ there. – Subjek kalimat di atas adalah Forty percent of the world’s oxygen → tunggal (karena oksigen tidak dapat dihitung) – Kalimat pertama menunjukkan Simple Pre sent Tense. Maka, rumus Passive Voice-nya: is + V3 → is produced.
