如图,已知△ABC.求作BC边上的高.(要求用尺规作图,不写作法,保留作图痕迹)
⑴Where's your mum?
⑵Am I going to have a party?
⑶The balloon is flying away.
⑷The teacher can help me.
start:____ duck:____ soon:____
stay:____ mess:____