单项选择题
A．people know the whales are going to die B．the whales have to be carted away and buried C．the whales cannot be used as food D．no one can use the beach on those days
A．they have all been shot B．they are too dangerous C．they are all hiding under the earth D．they could not get used to the cold weather
A．Because they had a device called kinetoscope. B．Because they asked Thomas Edison to help them. C．Because they got a way of using their own devices. D．Because Thomas Edison had successfully solved certain problems.