单项选择题
A．for B．over C．about D．of
A. I think so. B. Don’t mention it. C. Please take it easy. D. What’s the matter E. And you F. I’d love to. G. But he panned to. H. Me, too.
A．the doctor belonged to that organization B．many people in Hong Kong also suffered from it C．the doctor found its virus and sent the samples to them D．it spread widely in Singapore for the first time