keep/our environment/clean/or/not enjoy /healthy life
A. If we don't keep our environment clean, we won't enjoy a healthy life.
B. Unless we won't keep our environment clean, we don't enjoy a healthy life.
C. We keep our environment clean, and we wouldn't enjoy a healthy life.
C. We keep our environment clean so we didn't enjoy a healthy life.
Đáp án đúng: A
Dịch: Nếu chúng ta không giữ môi trường sạch, họ ta sẽ không có cuộc sống khỏe mạnh được.
A child is influenced as much by his schooling as by his parents.
Her living conditions were not good. She studied very well.
In these plans nothing has been overlooked.