Climate change is the biggest problem WHICH/THAT young people will have to face.

Thomas Edison, ___ was the inventor of the lightbulb, said ______ "Our greatest weakness lies in giving up"

My twin sister, ____ lives in Canada, is an engineer

Many people work hard and use their money to buy expensive products like smart phones and cars, WHO / THAT have a negative effect on the environment.

My last year of college was WHEN/THAT I had to work the hardest.

The verb is INNOVATE. What is the noun and the noun (person) ?

The verb is DESIGN. What is the noun (person) ?

Eden Full Goh is an (invent) ______ WHICH/WHO (design) _______ a clever invention _____ WHICH/WHO provides clean water

I don't know anyone WHO/WHICH has visited Brazil.

The artist WHO/WHOSE work I admire the most is Picasso.

The noun (person) is SCIENTIST. What's the adjective?

The idea _____ he suggested was innovative,

The adjective is PRODUCTIVE. What's the VERB?