January 2024 2 5 Report
1. Complete the following passage using the verbs from the boxes in the past tense.

There will be one extra verb.

arrive – help – learn – think – hit - appear

Water is an essential part of our planet. Without water, no life would be possible. We all ___________________

about the water formula and its cycle in nature. We have also seen how much water there is in the oceans on maps,

but... do we know how water _____________________on our planet?

One of the most known theories says that water _______________________in our planet because asteroids and

comets have water in them in the form of ice. In the Pre-Cambrian era, thousands of meteorites

__________________________the surface of Earth, causing great destruction. The water stayed on our surface and

________________________ create life.

Another theory claims that water existed on Earth from the beginning. Scientists have discovered some asteroids as

old as our planet and found evidence of water in them. According to some experts, water could have appeared

before we even ___________________ .

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