<span>D) American flags are waved by spectators down Peachtree street, and nearly everywhere red, white and blue is seen by the runners.</span>
The verb <em>to cost </em>is C. linking irregular weak verb.
It is irregular because its past form is not formed with -ed, but: cost - cost - cost. It is linking because it links the subject with its price.
John DiConsiglio sorts out the content in "Disease Central," the supplemental content in When Birds Get Flu, to show the focal thought of how he compresses the focal thought with a quote. I hope the answer will help you.
