We/ survive/ unless/ start/ work/ cleaner/ safer/ sources/ energy

2/15

Choose the best sentence - a, b, c, or d – made from the given cues.

We/ survive/ unless/ start/ work/ cleaner/ safer/ sources/ energy.

We won't survive unless we start working cleaner, safer sources of energy.

We won't survive unless we start work on cleaner, safer sources of energy.

We will survive unless we start to work cleaner, safer sources of energy.

We won't survive unless we start working on cleaner, safer sources of energy.

Giải thích

Đáp án: A

Giải thích: Chúng ta sẽ không tồn tại trừ khi chúng ta bắt đầu làm việc sạch hơn, các nguồn năng lượng an toàn hơn.