1.英语在世界范围内被广泛应用.
-> English is widely applied (或：used) in the world.
2.有许多发达国家都使用英语.
-> English is used (或：spoken) in many developed countries.
接下来是改错
English is widely used in the whole world.
whole应该去掉,有whole的话不是“广泛”是“全部”使用了.
There are so many developed countries which are speaking English.
country speak English 国家说英语,不通,应该说：英语在这些国家中被说,where English is spoken.