Question

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

A．build

B．built

C．are building

D．were building

Answer 1

C

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。