The underlined part that needs correcting

the underlined part that needs correcting.

1. Jason asked Nathan how could people learn about black holes if they trapped both dark matter and ight. A. asked B. could people C. if D. trapped
2. I asked the scientist, "What will happen to the planets when the Sun became a red giant?" A. will happened B. when C. became D. giant
3. Sarah asked Abigail if scientists could discovered more planets outside the Solar System. A. asked B. if C. discovered D. outside
4. They wanted to know when did astronauts orbited the moon and later walked on its surface. A. wanted B. did C. orbited D. walked
5. Scientists said that they estimated the age of the universe by using the movement of stars to measure their expanding speed. A. said B. estimated C. using D. their
6. The student asked, "How many sunlight does the surface reflect instead of absorbing?" A. How many B. does C. reflect D. absorbing
7. Parker asked Antony whether would black holes swallow up the whole universe. A. asked B. whether C. would black holes D. the
8. He asked to me, "On which planet would you see the sun rise in the west and set in the east?" A. to B. On C. rise D. set
9. He asked if or not there might be liquid water in geological formations not far below the surface of Mars. A. If B. might be C. in D. not far below

10. Naomi asked Henry what kind of life might exist on planets that were far away from us. A. asked B. might exist C. were D. from us 
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