Make the verb agree with the subject in each of the following sentences.
A. (Do/Does) he and his brothers still practiced law?
B. Horseshoes (is/are) always a popular backyard game.
C. Either the secretary or the boss (is/are) on the telephone.
D. Either Bill or his sisters (is/are) going to pay their parent's bills.
E Twelve inches (is/are) a foot.
F. Three (were/was) asked to consult with her.
G. There (is/are) plenty of restaurant that specialize in that kind of food
H. Writing letters (is/are) part of a secretary's job
I. The number of clients to see the lawyer today (is/are) surprisingly small