We need to get to the root(本质) of the problem we can solve it.

_______— I `m fine, thank you.

Taobao is a popular online shopping website, ________ varieties of items at low prices.

The temperature in this mountainous area ___ from day to day.

_____ it’s a little bit hard for some of us to imitate the standard English accent, we still communicate with foreigners very well.[ ]