One of the four underlined parts marked A, B, C, D in each sentence is not correct in standard English. Define them.

Regional geography examines, on a regional basis (A), the ways in which (B) the people local (C) interact with the environment (D) of the area where they live.

Suy nghĩ và trả lời câu hỏi trước khi xem đáp án

ATNETWORK
ADMICRO
YOMEDIA
ZUNIA9