________evidence that language acquiring ability must be stimulated.
They discovered a large collection of old pots _______ Qin Dynasty, which are still _______ today.
Nothing shall _______ me _________ from accomplishing my purpose.
There was ______ time ______ I hated to go to school.
We ______ ; we followed the boss into the hall as his guests. How lucky we were!
It’s just _____among countries to host the Olympics as to win an Olympic Medal.