Thanks is a common _____ used in English. You can never use it too much.

--- Believe it or not, last month in America I came across the girl whose photo was in the drift bottle I had got 3 years before. --- Really? That’s the most surprising ___________________ I’ve ever heard of.

China has got a good          for fighting against the flu with its careful and smooth organization.

In the _____ of rain in the process of planting trees, you must stop.

Such men have made＿＿＿＿＿by developing oil businesses．