o Chinese scientists have made a wonderfuldiscovery, which marks a major _______ in the basic research in the field.

At __________we eat rice dumplings and on__________ we make pumpkin lanterns.

What did your father ask you just now — He asked me .

—What ___ I wear for the party this evening, darling?——It’s a formal dinner．

The two sportsmen congratulated each other _____ winning the match by shaking hands[ ]