They went to Beijing to stay there for a short time.（同义句） They went to Beijing ____ ____ ____

They went to Beijing to stay there for a short time.（同义句） They went to Beijing ____ ____ ____
顺便说下这2题
I went to Hainan once last year.（划线部分提问,划线处once）
____ ____ ____ ____ you go to Hainan last year?
This means there will be less and less space for wildlife.（改为一般疑问句）
____ ____ ____ ____ ____ be less and less space for wildlife?