accent     A. official  B. recover         C. recognize      D. pace

Accent, tone, _____ and vocabulary can affect the ability of a language learner to

understand or to be understood.

A. whistle       B. translation   C. fluency      D, experience

______ your accent, you must be from Shanghai.

_____ his accent , he is from the south of China.

____________ his accent, he is from the south of China.