another world war break out, what would_________ human beings

Mr．Smith gave the attendantsa wonder lecture the company in theinternational conference.

making any decision, ______your family to find out which activities are most important to you.

traditional Chinese medical records, Youyou Tu rediscovered an ancient plant-based treatment for malaria that worked ________ modern therapies failed.

_________ you spell it – Yes, I can. P-E-N, pen.