A picture of unemployed Filipinos (give, gives) a grim condition of the Philippines.

The quality of these papers (is, are) not very good.

The products of learning how to write letters (have, has) been proven to be extremely helpful.

The levels of communication (vary, varies) from subject to subject.

These scissors (is, are) expensive.

This pair of scissors (is, are) cheap.

There (has, have) been a number of telephone calls today.

A troupe of dancers (is, are) in town.

The number of days in a week (is, are) seven.

Three miles (is, are) too much to run in a day.

Neither Darivs nor his playmates (is, are) going to mass today.

The study of Business English (is, are) very rewarding.

The effects of the crime (is, are) numerous to mention.

Everyone (know, knows) what to expect from this applicant.

Avelina (go, goes) to church every Sunday.

News (is, are) common to all.

Examples of poorly written letters (have, has) been kept.

Two plus two (is, are) four.

The Essentials of Business English (is, are) the title of the book.