Subject Verb Agreement Intervening Prepositional Phrase

Apartments in this city (is required, are required) to have smoke alarms.

• is required

• are required

A convoy of trucks (is roaring, are roaring) down the highway.

• is roaring

• are roaring

A dealer in rare books (was asked, were asked) to look at the collection.

• was asked

• were asked

That group of stars (is called, are called) the Big Dipper.

• is called

• are called

A box of warm coats (was delivered, were delivered) to the shelter.

• was delivered

• were delivered

People on the beach (was building, were building) sand castles.

• was building

• were building

Rising mists from the moor (casts, cast) an aura of mystery over the scene.

• casts

• cast

Several teaspoons of cinnamon (was added, were added) to the mix.

• was added

• were added

A student who majors in computer science (has, have) good prospects for employment.

• has

• have

The leaves on the maple tree (is turning, are turning) bright red.

• is turning

• are turning