中国大学MOOC: _______ deep down in the earth for thousands of years, the dead forest has rotted away and become coal.
Having been buried
举一反三
- _______ deep down in the earth for thousands of years, the dead forest has rotted away and become coal. A: Buried B: Burying C: Having buried D: Having been buried
- ( )deep down in the earth or thousands of years ,the dead ore g has rotted<br/>away<br/>and become coal. A: Buried B: Burying C: Having<br/>buried D: Having<br/>been buried
- ____ deep down in the earth，the dead forests rotted away and became coal.
- Approximately, how much warmer has the Earth become over the past 200 years?
- 中国大学MOOC: ______in the company for eight years, Tim has become experienced in business negotiations.
内容
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This species has nearly died out because its habitat is being destroyed. A: turned dead B: passed by C: carried away D: become extinct
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The reason why all the solar energy falling on the earth can’t be utilized is that ______． A: only a very small part is available B: the sun is too distant from the earth C: it takes thousands of years for this energy to be stored up in coal and oil D: our scientific knowledge is not sufficient
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中国大学MOOC: For thousands of years, the 24 solar terms have been used to _______________.
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The tortoise as far as I know has been on earth for thousands of years.
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It has valleys ___________________ into the Earth millions of years ago.