1. The desire to be happy is ______ because everyone in the world wants to be happy. (A) insistent (B) enthusiastic (C) conservative (D) universal

11. Men’s ______ of the earth has caused many parts of the world to have pollution problems. Fortunately, people are aware of these problems, and the international community is taking actions to solve the problems. (A) exploitation (B) determination (C) acceleration (D) demonstration