Defining relative clauses & Giving examples

The person ____ invented the zipper must be very rich by now.

• whom

• why

• who

• which

The Incas are a prime _______ an advanced culture that never invented writing.

• classic example

• example of

• name one example

• example

Correct the mistake:

There is a genetically modified tomato which it has genes from a fish to resist cold.

Is this sentence correct?

Mary Anderson, the creator of the windshield wiper, is an example from an early female inventor.

• Yes

• No

The company is developing a new phone _____ (run) on solar power.

The drawbacks of cell phones include the potential risk of cancer, to name ___________.

The salmon _______ developed grows twice as fast as a normal fish.

• that they

• which they

• they that

• they which

The wheel ______ classic _______ of an important prehistoric invention.

• are a / example

• was an / example

• were a / example

• is a / example