A:taking a bus.
B:Oh, wonderful, indeed.
C:I went there alone.
D:A classmate of mine showed me the way
— Because they are waiting to watch the boat races.
你喜欢吃拉面吗?拉面馆的师傅,用一根很粗的面条,把两头捏合在一起拉伸再捏合,再拉伸,……反复几次,就把这根很粗的面条拉成了许多细的面条,如下面的草图所示这种捏合到第7次后可拉出细面条( )
地球仪上的纬线( )