For forty years Jane Goodall has been outspoken about making the rest of the world understand and respect the life of these animals.1.has been 是is 的现在完成时，那么 be动词时有完成时态的？2.about介词短语充当什么状语呢?
A love of junk food, television and computer games
has sent the country’s waistline balloning with Australians weighing in as the
word’s fattest nation after the United
States. 请问老师，句子主语不是a love
of...，这里用as...，并没有出现澳大利亚这个国家？这样是...
'But why should I do anything，Rose？'I answered，calmly eating my egg．老师，calmly eating my egg.与eating calmly my egg.eating my egg calmly是有什么区别的？非谓语动词带自己的状语（副词作状语时），这个状语不是在非谓语短语里面吗？
When its energetic director, Sabyasachi Mukherjee, asked his staff what it should be doing, chief among the ideas put forward was to reach out far more, not just to Mumbai city-dwellers who would normally never think of visiting a museum but to other museums around the world.请问：句中的chief ...
牛津英语用法指南第一版130.2条：
It could rain later on this evening. 晚上以后可能下雨。
然而第三版却改为：
It could rain later this evening, perhaps. 今天晚上晚些时候也许会下雨。（122.8条）
第一版用的是：later on this evening ...