All but one of her books, Hacienda: A Story of Mexico, (has, have) been purchased by our library.

Not a single one of her books (remain, remains) on the library shelves very long.

Both "Noon Wine" and "Pale Horse, Pale Rider" (was, were) praised by critics.

There (is, are) several possible explanations for her outstanding reputation.

Neither poetic sensibility nor psychological insight (is, are) in short supply.

All but one or two of my relatives (admire, admires) her.

Almost everyone who has read Porter (feels, feel) she deserved the Pulitzer Prize.

A great deal of her insight and talent (is, are) apparent in Ship of Fools.

Porter always cared about human relationships; each of her books (prove, proves) this point.

Alfonso Sastre, who is one of Spain's leading playwrights, (has, have) been influenced by the works of Arthur Miller.

Some of his writing (show, shows) the influence of Brecht and Beckett.

Sastre, along with these playwrights, usually (place, places) his plays in urban locations.

A major theme throughout his plays (is, are) criticism of society.

Despair caused by social injustices (pervade, pervades) Sastre's works.

The characters in almost every play (face, faces) the problem of maintaining a sense of self.

Overcrowded living conditions, in addition to situations often demeaning, (add, adds) to the characters' misery.

However, he, as well as Miller, (inject, injects) a sense of hope into the despair.

Perhaps the play that stands as the finest example of the theme of despair and hope (is, are) Ana Kleiber.

This playwright, who is considered one of Spain's most controversial dramatists, (have, has) also been called his country's most original.