Poaching is a big issue in Africa. Endangered animals are often killed for a single body part that is sold illegally on the black market.

A. Poaching is a big issue in Africa where endangered animals are often killed for a single body part that is sold illegally on the black market.

B. Poaching is a big issue in Africa as endangered animals are often killed for a single body part that is sold illegally on the black market.

C. Poaching is a big issue in Africa, so endangered animals are often killed for a single body part that is sold illegally on the black market.

D. Poaching is a big issue in Africa when endangered animals are often killed for a single body part that is sold illegally on the black market.

Bài tập Trắc nghiệm Tiếng Anh 10 - Unit 10: Ecotourism (Writing)