⑴____The snow is falling down.
⑵____There is a yellow flower.
⑶____How about playing the guitar?
⑷____Wow, look at the big cow!
⑸____It has a big brown mouth.
一次在给一位受重伤的战士做手术时,储存的血液正好用完,而在场的没有与那位战士血型相同的人,这时白求恩医生挽起袖子说:“我是万能输血者,抽我的血”.