Fill in the Blanks Questions

Multiple choice
  1. using, substitute

  2. believing, replacement

  3. depending, reserve

  4. relying, alternative

  5. reckoning, option

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The sentence talks about the supply of Uranium not lasting for long. So, scientists are warning against depending or relying on Uranium totally as a fuel to nuclear reactors. As the supply will not last, research on the alternative, Thorium, needs to be revived. Option 3 has 'depending' which is correct, but 'reserve' (or stock for emergency) does not fit the context. So, only option 5 satisfies the criteria.