Question

which sentence demonstrates correct subject-verb agreement?
a. shirins tweezers has fallen behind the cabinet.
b. each of tonys inventions has a unique purpose.
c. ramons family have a long history of success in art.
d. joels trip to the united states were postponed.

Explanation:

• Option A: "tweezers" is a plural noun, so the verb should be "have" instead of "has".
• Option B: "Each" is a singular subject, and "has" agrees with it. "Each of + plural noun" takes a singular verb.
• Option C: "family" here is a collective noun treated as a singular entity, so the verb should be "has" instead of "have".
• Option D: "trip" is a singular noun, so the verb should be "was" instead of "were".

Answer:

B. Each of Tony's inventions has a unique purpose.