请帮我翻译几个句子,先谢谢了O(∩-∩)O~~~（翻译成英语）

是不是讲八下第六单元现在完成进行时?
How long has Chen Yixun been studying music?
How long has An Yixuan been acting plays?
How long has Rong Zuer been singing?
如果是这个单元的内容,可以根据当下同学们当中比较流行的人物,选几张图片,放入幻灯片中,比如许嵩,然后让同学们猜,how long has he been singing\writing music之类的.
或者反过来,通过PPT把许嵩的脸部遮上,你描述他he has been ..., so can you guess who he is ? 这样的猜人的环节,会很活跃气氛