GRE Text Completion: JiJing 1373-GRE填空机经1373题 - 4U5Q0Q57GEO8CGB_A

The city's traffic-planning department has been working hard to (i)____________ drivers. Closely spaced stop lights have been added on roads into town, causing delays. Pedestrian underpasses designed to allow traffic to flow freely across major intersections have been (ii)____________. A. assist B. enhanced C. calm D. stabilized E. discourage F. removed