The flood is believed ____ more than 50 people and made thousands homeless, ____ it perhaps the most destroying flood in history in the area.
It was on National Day __________ I visited Shanghai Expo.
Was it in the village __________ he was born __________ the talented journalist met the retired professor?
It wasn't until nearly a month later __________ I received the manager's reply.
It was __________ he came back from school today __________ he found his new book missing.
It was only when I reread his poem recently __________ to appreciate its beauty.