Scientists are trying to ways to treat the terrible disease called H7N9.
Your team lost the game, but you shouldn’t _______.
On February 25, 2013, Li An, a Chinese director, won the best director again. It is histime to win an “Oscar”.
The speech by the mayor of Shanghai before the final voting for EXPO 2010 is strongly impressed ___ my memory.
Ted told us ______ funny story, but he forgot ______ ending himself．