根据首字母，写出正确的单词

46.E_____________ are the biggest animals on land.

47.W____________ to the zoo.

48. A g _______ has a very long neck(脖子). It's a beautiful animal.

49. A dolphin is very c________ because it can act (表演)as people do.

50. The panda is very shy, so please be very q_______.