In the next 30 years, we could see more heat waves like_____ now occurring in the US or the kind that swept across Europe in 2003 that caused tens of thousands of deaths.

---What’s wrong with my son, doctor?--- _______ serious. Just a slight cold.

What is it _____ his daughter needs most？

The children are giving their classroom a good cleaning, ___ are sweeping; ___ are mopping. 

— Why did you give up the job in America?— Because I don’t want to stay far away from my girlfriend. You know, she means ______ to me.