Jawaban:

6.

Passive : Many things have been sacrificed by us in order to face this condition.

Active : We have sacrificed many things in order to face this condition.

7.

Passive : The patients are treated by the medical officers in an isolation room because of the disease.

Active : The medical officers treat the patients in an isolation room because of the disease.

8.

Passive : The vaccine of the virus will be found by the scientists as soon as they finish the research.

Active : The scientists will find the vaccine of the virus as soon they finish the research.

9.

Passive : The government warning about social distancing must be obeyed by all people to stop the spread of the disease.

Active : All people must obey the government warning about social distancing to stop the spread of the disease.

10.

Passive : The house was left by them when the house was broken and some jewelry was robbed by thief.

Active : They left the house when thief broke the house and robbed some jewelry.

Penjelasan:

6. Kalimat tsb menggunakan Simple Perfect Tense. Rumus:

(+) O + has/have + been + V3 + (by agent) → Passive

(+) S + has/have + V3 + O → Active

7. Kalimat tsb menggunakan tense Simple Present Tense. Rumus:

(+) O + is/am/are + V3 + (by agent) → Passive

(+) S + V1 + (s/es) + O → Active

8. Kalimat tsb menggunakan Simple Future Tense. Rumus:

(+) O + will + be + V3 + (by agent) → Passive

(+) S + will + Vinf + O → Active

9. Kalimat tsb menggunakan modals (must). Rumus:

(+) O + must + be + V3 + (by agent) → Passive

(+) S + must + Vinf + O → Active

10. Kalimat tsb menggunakan Simple Past Tense. Rumus:

(+) O + was/were + V3 + (by agent) → Passive

(+) S + V2 + O → Active

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