WHEN /1 / BE / SCHOOL /1 / NOT / WEAR / UNIFORM A. WHEN I WAS AT S...

35. When /1 / be / school /1 / not / wear / uniform A. When I was at school, I had not to wear a uniform. B. When I was at school, I mustn't wear a uniform. C. When I was at school, I didn't have to wear an uniform.D. When I was at school, I didn't have to wear a uniform.C. READINGI. Read the passage below and decide which answer (A, B, C or D) best fits each space.THE THREAT TO THE ENVIRONMENT Nowadays people are more aware that wildlife all over the world is in danger. Many (36)...of animals arethreatened, and could easily become (37) ... if we do not make an effort to protect them. There are many (38) ...forthis. In some cases, animals are hunted for their fur or for other valuable parts of their bodies. Some birds, such as parrots, arecaught (39) ... and sold as pets. For many animals and birds, the problem is that their habitat - the (40)... where theylive - is disappearing. More (41) ...is used for farms, for houses or industry, and there are fewer open (42) ... than thereonce were. Farmers use powerful chemicals to help them grow better (43) ..., but these chemicals pollute the environmentand (44) ... wildlife. The most successful animals on earth - human beings - will soon be the only Ones left, unless we can(45) ...this problem.