单项选择题
A．Wondered B．Being Wondered C．Wondering D．Having been wondered
A．such a careless B．so a careless C．so careless D．so careless
A. Can I help you C. Safety belt, please. E. Is there anything serious G. What flight are you taking B. We are taking off at last. D. The engine went wrong. F. Just a moment, please. H. It should be OK in an hour.