Question

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________

Answer 1

Respuesta:

1:learn

2: appear

3: arrive

4: hit

5: help

6: think

Explicación:

Answer 2

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 learned 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 appeared on our planet? One of the most known theories says that water arrived in our planet because asteroids and comets have water in them in the form of ice. In the Pre-Cambrian era, thousands of meteorites hit the surface of Earth, causing great destruction. The water stayed on our surface and helped 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 think.