At that time he________________with a charity show to_______for Project Green Hope.他那时正在给一个为绿色希望工程筹钱的慈善演出帮忙.
问题描述：
At that time he________________with a charity show to_______for Project Green Hope.
他那时正在给一个为绿色希望工程筹钱的慈善演出帮忙.
答
At that time he was helping with a charity show to raise money for Project Green Hope.
答
was working;raise money
答
was helping /raise money