It even leaves the scientists in wonder ________ they should

英文翻译,力求准确When scientists look to the stars, they wonder abou 1.In autumn,the leaves ________ to the ground. In the past few years, Chinese scientists ________ great suc scientists should be kept in formed of the latest developmen scientists should be kept___of the latest developments in th the tree leaves are_____in spring.they are yellow in ____. scientists have found that even in the sahara,there is rainf In autumn when leaves ________ yellow, they soon begin to fa “Even if I control everything,it should maintain the necessa we should help ________ when they are in trouble. This time,I did even ________(bad)in the exam. I wonder ________ they finished so many different jobs in su