Question

1. A new theory suggests the Earth once had a small
2. second moon that disappeared after a collision with its
3. big sister. Researchers say in an article in the journal
4. Nature that the slow speed of the collision may explain
5. the build up of highlands on the rarely seen part of the
6. Moon.
7. This new theory builds on the idea that around four
8. billion years ago the Earth was struck by a Mars-like
9. planet, but instead of the smash producing enough
10. debris for one moon, this paper argues there
11. was enough for two.
12. This small second moon became stuck in a
13. gravitational tug of war between the Earth and its much
14. larger sister. After millions of years in this position the
15. new moon was drawn into a collision at a speed of less
16. than three kilometres per second.
17. The scientists say this slow paced crash may have
18. caused a build up of material and the formation of
19. highlands on the Moon's far side. The face of the moon
20. that can’t be seen from the earth. For decades scientists
21. have been trying to understand why the visible near side
22. of the Moon is covered in craters while the far side has
23. mountain ranges higher than 3,000 metres.
24. The researchers hope that Nasa observational missions
25. might prove this new theory within a year.

A afirmação correta acerca das formas verbais usadas no texto é


a) The verb form “had” (L. 1) is in the Past Participle.

b) The verb form “was” (L. 15) is the simple past

c) The verb form “have been trying” (L.21) is the present perfect

d) The verb form “seen” (L. 5) is the present perfect

e) The verb form “disappeared” (L.2) is the simple past.

Answer 1

Resposta:

e) The verb form “disappeared” (L.2) is the simple past.