Exercise 2: Choose the correct answer A, B, C or D: (6pts) 1. Water _______ in the lake has made the fish die. A. pollution B. pollute C. polluted D. polluting 2. Three hundred people were left _____ by the earthquake. A. home B. property C. homeless D. house 3. The train to Ha Noi ______ at 7a.m tomorrow. A. leaves B. leaving C. to leave D. left 4. Environmental pollution has _____ to lots of health problems. A. caused B. got C. made D. led 5. Singapore is famous for its __________ and green trees. A. cleanly B. cleanliness C. cleaning D. clean 6. In some English speaking countries, turkey and pudding are ______ food at Christmas. A. national B. historical C. traditional D. possible 7. If there ……..so much light in the city at night, we could see the stars ______ A. weren’t-clear B. wasn’t-clearly C. was-clear D. were-clearly 8. We will save thousands of trees if we _______ waste paper. A. aren’t B. won’t C. don’t D. didn’t