I got up late this morning， I had to go to school by taxi．

I don’t know ____ that you stay here.

31．Chicago lies _________ the two rail roads are connected．

It’s traditional in China to firecrackers on Spring Festival. —-But the serious smog（雾霾）nowadays needs us to stop it.

rld’s leading thinkers and policymakers examine what’s come apart in the past year, and what will define the year ahead,