【正文】
C. north。 ( ) 1. — ________ did you go there? — By train. A. How B. Where C. What ( ) 2. She has no idea what ________ see in China. A. on B. at C. to ( ) 3. It’s famous ________ the Potala palace. A. to B. for C. of ( ) 4. China is the ________ biggest country in the world. A. three B. third C. thirteen ( ) 5. Qinling Mountains and the Huaihe River separate China from the ________ to the ________. A. north。 (1) mo