So fast ________ that it is difficult for us to imagine its speed.
A: has light traveled
B: light travels
C: does light travel
D: travels light
A: has light traveled
B: light travels
C: does light travel
D: travels light
举一反三
- so fast ____ that it is difficult for us to imagine its speed A: light travels B: travels light C: does light travels D: does light travel
- The teacher told us that light ( ) faster than sound. A: travel B: will travel C: travels D: traveled
- The teacher told us that light ________ much faster than sound. A: travels B: traveled C: would travel D: had traveled
- The teacher said that light faster than sound. A: travels B: traveled C: travel D: to travel
- The professor said that light ________ faster than sound． A: travels B: traveled C: travel D: traveling