500
Pine, like other softwoods that ignite quickly, are useful as kindling.
(A) other
(B) quickly
(C) are
(D) as
(E) No error
The correct answer is C
Explanation:
The error in this sentence is (C): the plural verb "are" does not agree in number with its singular subject, "pine." The correct sentence reads: Pine, like other softwoods that ignite quickly, is useful as kindling.