单项选择题
A．held B．took C．set D．planed
A．he can see the difference between red and deep red B．he can see the difference between blue and green C．he can’t tell the difference between orange and green D．he thinks green is the same as blue
A．sightseers have noted the changes B．computer-animated views have shown the shrinkage C．one of the glaciers was hit by a ship D．the temperatures are much colder