①机器轰鸣,火车飞驰 ②在线购物,网络订票
③车马劳顿,家书万金 ④楼上楼下,电灯电话
A:①②③④
B:②①③④
C:①②④③
D:③①④②
____ my brother.____name is Jack. Look! Those stamps are____. (he)