it_(difficulty) for human beings to predict weather in the past

it_(difficulty) for human beings to predict weather in the past nothing difficulty for me have difficulty to look for a job和looking for的区别have difficulty looking for ajob reading in the sun is dad for your eyes.(同义句)it_ _ _you to read in the sun What's reason for the difficulty of maintaining the cooperation? They had much difficulty r__ money for the poor children. It is-----(difficulty)for me to change my life For the girl,the difficulty is how______(cross)the river When you have difficulty _____(solve) the problems,please ask me for help find out the sentences from the passage that stand for the biggest difficulty comes from yourself You ________turn to the teacher for help when you have difficulty in study. What's reason for the difficulty of maintaining the cooperation?这是个问题,不是翻译. Do you know his difficulty he had for keeping five children at shool.改错 this story illustrate the difficulty for women of that time中的the一定要用吗,为什么? It was ________ for human beings to predict weather in the past.(difficulty) It was difficulty for the human beings to predict the weather in the past翻译句子 He has difficulty ___ the worda、to pronounce b、 for pronouncing c、 pronouncing d、 of pronouncing difficulty是什么意思