There was left________smoke after the plane flew away.
A．a line of B．a column of
C．a pile of D．a row of
There was left________smoke after the plane flew away.
A．a line of B．a column of
C．a pile of D．a row of
B
1． 本句意为“飞机飞过后，留下一根烟柱”。a column of意为“一柱……”；a line of和a row of
是“一排，一行”的意思；a pile of意为“一堆”。