Review 3 (units 6-7-8 )

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

My brother Minh has the _______ of a good leader

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

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

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

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

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

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

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

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