做这种题要注意前面是否有否定词,i don't think it's difficult for you to choose the right hairstyle
里面don't think 里有否定词don't,所以这句话变形之后就是i think it isn't difficult for you to choose the right hairstyle,所以后面一句,就要用is it?
下面I am seldom satisfied with my hairstyle意思是我很少对我的发行满意,所以要说no,it is difficult for me to choose the right hairstyle.