The teacher said that light ___ faster than sound.
| A．travelled | B．had travelled | C．travels | D．were travelling |
A US report predicts that in 15 years' time the economy in Asia will be larger than ________ of North America and Europe combined.
| A．what | B．that |
| C．one | D．those |
Frankly speaking, ________ of them knew what the other was doing that morning.
| A．none | B．neither |
| C．some | D．all |
I'll spend half of my holiday practicing English and ________ half learning drawing.
| A．another | B．the other |
| C．other's | D．other |
September 18th, 1931 is a special day, ________， I think, that will be remembered by the Chinese forever.
| A．one | B．it |
| C．which | D．that |
—Shall I attend my friend's comingofage ceremony, Mum?
—No, unless you see to ________ that you will be home before 1000 PM.
| A．one | B．this |
| C．it | D．her |