The workersa new bridge now. The traffic in our city will be better soon.A. buildB. builtC

问题补充：

The workersa new bridge now. The traffic in our city will be better soon.

A. build

B. built

C. are building

D. were building

答案：

A. build

B. built

(答案→)C. are building

D. were building

解析：此题考查动词的时态。根据now可知考查的是现在进行时的基本构成，be+ving，因the workers是复数，系动词be要用are，故选C。