Choose the best answer A, B, C or D for each sentence

A. music

B. musician

C. musical

D. musically

A. strength

B. strengthen

C. strong

D. strongly

A. song

B. sing

C. singer

D. singing

A. national

B. nationalist

C. nationality

D. nationalize

A. country

B. countryman

C. countryside

D. countrywide

A. attract

B. attractive

C. attraction

D. attractively

A. difference

B. different

C. differently

D. differential

A. inform

B. information

C. informant

D. informational

A. learn

B. learned

C. learnt

D. learning

A. please

B. pleasing

C. pleasure

D. pleasant