用动名词作主语写句子拿自己的包购物很容易.不用纸巾容易么.回收纸张真容易.

Packing your own bags is easy when you go shopping.
Is it easy to do without using paper towels ?
Recycling paper is quite easy.

Taking your own bags with you is easy when you go shopping.
It is easy without using paper towels?
Recyling paper is really easy.