选出不同类的一项。 (______) 1. A. long B. big C. tall D. wall (______) 2. A. London B. Beijing C. China D. New York (______) 3. A. postcard B. million C. hundred D. thousand (______) 4. A. of B. from C. about D. picture (______) 5. A. beautiful B. old C. right D. kilometre