my grandparents were  , they wrote letters to     others.

提示：1）In the present; go to traditional shops, supermarkets; choose products in the shops; no idea about the price;

2）In the future; at home, online shops; browse(浏览) websites for your likes; get the best and cheapest things by comparing all the products.

Shopping in the present and in the future

    Everyone has shopping experiences. Nowadays,

— Yes. I           Running Man at that time. It's my favourite TV show.

What do we need to   the trip?

The bus   , and there were .