Final answer:
The sentences are conditional and require the use of the past form or the conditional 'would' + base verb to describe hypothetical situations. For each sentence, the correct tense has been applied, indicating actions that have not occurred but are possible.
Step-by-step explanation:
The exercise given is a test of understanding how to use the correct verb tense when discussing hypothetical situations which typically require the use of the conditional tense or the subjunctive mood.
The sentences provided are all conditional sentences that discuss situations that are not real but could happen, which is why they usually require the past tense form or the conditional form of the verb.
- a) If I ruled the world, every day would be the first day of spring.
- b) If she managed to arrive on time at the restaurant, it would mean that we could eat earlier.
- c) You would not find much to eat at a Japanese restaurant if you did not like fish.
- d) This paint colour does not match the new carpet so it would be better to choose another one.
- e) Can you tell me how much it would cost if we bought a return ticket?