The more polite you appear to be, ____ your partner will be.

A. the happiest

B. the happier

C. the most happily

D. the more happily

Chuseok is one of ____ celebrations in the Korean calendar when Koreans give thanks to nature.

A. the most important

B. the more important

C. the less important

D. more important

Chocolates and flowers are by far ___ presents for mothers on Mother's Day in the UK.

A. more popular

B. the more popular

C. less popular

D. the most popular