1. Everyone knows that ______ paper was invented by _______ Chinese.
A. /; the B. the; a C. a; / D. a; a
2. The town _______ I visited last year is named Saffron Walden.
A. that B. where C. whose D. what
3. Can you show me the house _______ you were born?
A. which B. where C. when D. in where