1.We live in a city of six million i .
答案inhabitants
2.He indicated the l of this country with a pen on the map.
答案location
3.It was a good (家庭) with love.
答案household
4.The floods have killed over 2,000 people,making 4 million h .
答案homeless
5.Some students and teachers will visit Beijing next Wednesday under an (交换) programme.
答案exchange