1. The waiter was rude. The waiter was wearing a blue shirt. A. The waiter who was wearing a blue shirt was rude. B. The waiter whose was wearing a blue shirt was rude. C. The waiter, that was wearing a blue shirt, was rude. D. The waiter which was wearing a blue shirt was rude. 2. Ecotourism/ help/ conservation/ wildlife/ generating funds/ maintaining national parks. A. Ecotourism helps conservation wildlife by generating funds for maintaining national parks. B. Ecotourism helps conservation of wildlife by generating funds to maintaining national parks. C. Ecotourism helps conservation of wildlife by generating funds for maintaining national parks. D. Ecotourism help conservation of wildlife by generating funds for maintaining national parks. 3. In each meal/ everyone/ own bowl/ and/ dishes/ put/ middle. A. In each meal, everyone has their own bowl, and dishes put in the middle. B. In each meal, everyone had their own bowl, and dishes are put in the middle. C. In each meal, everyone has their own bowl, and dishes were put in the middle. D. In each meal, everyone has their own bowl, and dishes are put in the middle. 4. If you / read newspapers, you / know what / happening / world. A. If you read newspapers, you will know what’s happening in the world. B. If you read newspapers, you will know what’s happening on the world. C. If you have read newspapers, you will know what was happening in the world. D. If you had read newspapers, you knew what’s happening in the world. 5. When /English / become / international language / first time? A. When does English become an international language for the first time? B. When did English become an international language for the first time? C. When did English become an international language with the first time? D. When did English become international language for the first time?