C12_T5_P1

not affected by something

(Ex: These plants are ... to disease.)

• resistance

• irresistible

• resist

• resistant

the hard outer covering of a tree

a period of 1 000 years

• Home owners are being encouraged to ... their homes to save energy.

• • insulates

• • insulating

• • insulation

• • insulate

• Her daughter is a ... source of worry to her.

• • instantly

• • constant

• • constantly

• • instance

• He paid tribute to all those who had died in ... of their country.

• • defence mechanism

• • defenceless

• • defence

• self-defence

• Researchers tried many times to ... the original experiment.

• • replicate

• • replica

• • replicable

• replication

• These plants ... in a warm climate.

• • flourished

• • flourishes

• • flourish

• • flourishing

• The fungus ... in warm, moist conditions.

• • thrive

• • thrives

• • thrived

• • thriving

• Trees need ... in order to maintain their growth.

• • moist

• • moisten

• • moisture

• • moisturizer