已知X、Y、Z、W均为中学化学中常见的单质或化合物，它们之间的转化关系如图所示（部分产物已略去）．则W、X不可能是（　　）

    In my family, there ____(be) three people. My father is a ____ (farm) and goes to work in the field every day. He isn't good at ____ (talk) but he gets on well with other people. My mother is very kind and is ____ (friend) to everybody. So when I have ____ problem I will turn____ her for help. My friends say I am clever, because when the teacher asks ____ (we) very difficult questions, I can come up with the answers ____ (quick). But my father thinks I am not patient. He says once I have difficulty in ____ (solve) problems, I will ____ (easy) give up. This is what I need to improve in the future.

《月下独酌》运用丰富的想象，描写诗人____的情景，抒发了诗人的____极度孤独之情，表现了诗人独自排遣寂寞 ____的个性。