Several diseases are believed to ______ the lives of many children annually, malaria _______.
43. Our national scenery Zhangjiajie is so charming that it is _____ description.
42. In China children, even in their twenties depended _____ their parents _____ food and clothing.
41. During her study in Massachusetts Institute of Technology she has got the degree _____ PhD, and it is a degree ______ chemistry.
40. Let’s put our heads together and decide _____ a plan of action.
39. Once everyone is _____ his life, he will instinctively(本能) find every possible way _____.