Which sentence is correct?

Question

A. The surface of the parking lots were redone this summer.
B. The sidewalks in the courtyards has been decorated with chalk.
C. The cars in the parking lot belongs to the teachers.
D. The bike on the bike rack is blue.

Answer 1

The correct sentence is:

D. The bike on the bike rack is blue.

The other sentences have subject-verb agreement errors:

A. "were" should be "was" (singular subject "surface"). B. "has" should be "have" (plural subject "sidewalks"). C. "belongs" should be "belong" (plural subject "cars").