6. Viet Nam is multicultural country with 54 ethnic groups.
A. a B. an C. the D. A and C
7. It is ....................... in the city than it is in the country.
A. noisily B. more noisier C. noisier D. noisy
8. The English test was ....................... than I thought it would be.
A. the easier B. more easy C. easiest D. easier
9. English is thought to be ....................... than Math.
A. harder B. the more hard C. hardest D. the hardest
10. My house is ....................... hers.
A. cheap than B. cheaper C. more cheap than D. cheaper than