REVIEW 3 Units 6-7-8 (Grade 12)

My brother Minh has the _______ of a good leader.

• robots       

• extinction        

• probation       

• qualities

The new _______ working in the customer service department looks so real that many people have mistaken her for a human being.

• android              

• robots

• extinction        

• probation

Some people support the idea of reviving _______ species, but others are against this idea.

• extinct

• endangered

• rare

• huge

One day, medical _______ will replace human surgeons and perform complex surgical procedures.

• robots

• android

• employees

• applicants

Many touch screen mobile devices such as smartphones and tablet computers use the _______ operating system.

• Android

• Quality

• Robot

• Evolutionary

New employees can be put on a _______ period to see if they are suitable for the position.

• extinction        

• probation

• application

• education

In spite of the importance of biodiversity, _________ efforts are not strong enough.

• conserve

• conserved

• conservation

• conservationist

In his book On the Origin of Species, published in 1859, Charles Darwin first formulated the theory of _________ by natural selection.

• evolve

• evolution

• evolutionary

• evolved

Species _________, or species richness, is especially important to life on Earth.

• diverse

• diversity

• diversify

• diversely

I think the best way to _________ wild animals and plants is to protect their habitats.

• conserve

• conserved

• conservation

• conservational