Urban planners carry out projects to develop a city. They look at the needs of local people and the environment when they do this.

Urban planners carry out projects to develop a city. They look at the needs of local people and the environment when they do this.
A. While carrying out projects to develop a city, urban planners look at the needs of local people and the environment when they do this.
B. While carrying out projects to develop a city, urban planners look at the needs of local people and the environment.
C. If they carry out projects to develop a city, urban planners look at the needs of local people and the environment when they do this.
D. As carrying out projects to develop a city, urban planners look at the needs of local people and the environment.

Đáp án: B
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