The two sisters are_______ different in character --- one talks a lot while the other is a girl of few words.
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 _____.
38. She is crazy _____ the film star, while her brother is crazy _____ surfing.
37. The boy is curious _____ everything. I am sure he is very clever.
36. It is said that the step-mother is very cruel _____ the children.