Paper money was in___use in China when Marco Polo visited the country in___thirteenth century.
I’d like to rent a house, modern, comfortable, and _______in a quiet neighborhood.
In the afternoons, I usually stay and study in the classroom until 6:30, _______ most of my classmates have got home.
Kelly studies many different subjects in high school, _______ English is the most interesting in her opinion.
They are all interested in the newly-built apartments along the river, but _______ really want to buy any yet.
The newly-built house, _______ are painted light green, is really a peaceful place for us, especially after hard work.