请各位英语高手帮忙用英文翻译一下这些题目，急急急！英语高手们帮帮忙吧！

Mike has already learned taking photos for more than 2 months. It has rained twice in southern China since last Wednesday. The conductor has worked on this train for 20 years. The singer has sung lots of fantastic songs at concerts since the 1980s. Li