be aimed at

• The advertisement was aimed at males between the ages of 18 to 34

be associcated with

• Drinking milk is often associated with strong bones

be based on

• The study was based on 10 years of close observation

be regarded/seen as

• Albert Einstein is regarded as the premier theoretical physicist of the 20th century

be defined as

• Darkness is defined as the absence of light

be derived from

• Some medicines are derived from herbs

be divided into

• Canada is divided into provinces and territories

be involved in

J. Robert Oppenheimer was the primary figure involved in the creation of the atomic bomb.

be known as

• The Wright Brothers are popular known as the pioneers of humann flight

be prejudiced against

• Human are often prejudiced againt people they do not understand

be required for

• Regular sleep is required for good health

be used in

Flamethrowers were first used in WW I