非谓语动词
1. There were many talented actors out there just waiting________.
A．to discover B．to be discovered
C．discovered D．being discovered
2． —Why are the students working so hard these days.
—________ready for the coming entrance examination.
A．To get B．Get C．Getting D．Got
3. ______from the top of the tower，the south foot of the mountain is a sea of trees.
A．Seen B．Seeing C．Having seen D．To see
4_____by a greater demand for green products，the food company has set higher standards to
