everyone should try to----shopping bags to save our earth.(use)

everyone should try to----shopping bags to save our earth.(use)
everyone should try to----shopping bags to save our earth.(use)

everyone should try to----shopping bags to save our earth.(use)
try to do sth ,尝试做某事.
所以直接用use
整句话的意思是：每个人都应该尽量在购物时自带购物袋,以保护地球.