What change should be made in this sentence?

These are used in the dark of night for carrying former slaves to the next stop on their journey.
A.Change these to they
B.Change are to were
C.Change for to and
D.Make no change
B?

Right.

To determine the correct change in the sentence, let's analyze the options:

A. Change "These" to "they": This would make the subject in the sentence unclear, as "they" does not specify what it refers to. Therefore, this option is not correct.

B. Change "are" to "were": This change would be appropriate because the sentence refers to an action that occurred in the past. By using "were" instead of "are," the verb tense will align with the context of the sentence. Thus, this option is correct.

C. Change "for" to "and": This change would alter the meaning of the sentence. "For" introduces the purpose or use of something, while "and" implies an addition or joining of separate entities. Both words convey different meanings, so this option is not correct.

D. Make no change: Considering the rule of verb tense agreement, where actions in the past should use past tense verbs, making no change is not the most appropriate option. Therefore, this option is not correct.

In conclusion, option B, changing "are" to "were," is the correct change to be made in the sentence.