. In our country, it’s a practice that workers have _____ for the Spring Festival.

That year his total income, with his reward ________， ________ 12, 000 yuan.

 I’ve talked a lot about walking.      , I want to say it is a cheap, safe and enjoyable form of exercise.

There were three ____ eggs in the basket.

Many _______ of years later, the first extremely small plants began to appear on the surface of the water.