We should try to prevent air pollution__________.
------Did Lisa sing _________Alice at the corner last night, Tim? ------Oh, it’s hard to say.
Do you think Quanzhou is one of ______________in Fujian?
Tom misses his brother very much and he is looking forward ____ him.
If it ____ tomorrow, I ____ not go there by bike.
The old man lives ____ but he doesn’t feel ____.