130. So fast ______ that we can hardly i
题型:选择题
问题:
130. So fast ______ that we can hardly imagine its speed.
A.light travels
B.does light travel
C.is light travelling
D.light is travelling
130. So fast ______ that we can hardly imagine its speed.
A.light travels
B.does light travel
C.is light travelling
D.light is travelling