شرکت در آزمون آنلاین
زبان انگلیسی 1
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زبان انگلیسی 1
| آزمون شماره 10094
Earth is a planet which is moving around the sun. The Earth didn’t look like as it is at present. A very long time ago, there was no Earth at all. Scientists believe that the earth started as a large ball of burning gases about four billions years ago. Hot clouds of gases moved around for many million years. As the Earth moved round, it slowly became cooler and cooler.
The phrase “at present” in the first line means ...... .
According to the text, not many animals have … .