句子翻译。根据中文意思完成句子。
1. 我学英语已经有5年了
I _____ _____ English for five years.
2. 在保护动物方面还有很长的路要走。
This is still _____ _____ _____ to go to save the animals.
3. 他妈妈生病了，他得在家照顾她。
His mother is ill, he has to _____ _____ her mother at home.
4. 我们究竟能做什么？
What _____ _____ can we do?
5. 他在世界各地举办过音乐会。
He has given concerts _____ _____ the world.