Which contraction correctly completes the sentence?
Some people __________ responded to the invitation yet.
A.
hasn't
B.
haven't
And what is your answer? We'll be glad to check it.
To determine which contraction correctly completes the sentence, you need to consider the subject of the sentence and whether it is singular or plural. In this case, the subject is "Some people" which is plural.
Since the subject is plural, the correct contraction to use is "haven't", so the correct option is B. "haven't".