quEstions 11 to 13 ArE BAsED on thE Following tAlk. you now hAvE 15 sEConDs to rEAD quEstions 11 to 13.

whEn ChilDrEn ArE ABout Four yEArs olD, thEy ArE thE most ______.A．originAl.
B．vigorous.
C．Curious.
D．AmBitious.