C. The professors .(answer) about 100 questions.

might be............................

people live on the earth.

people help make the world a better place.

the colour of the skin: skin,white,black,red,yellow.

eye color: каррие,blue,green,grey.

hair color: brown,brown.

same people do not.

is he good at math?

was she there last year?

were they hungry when they arrived?

are you nice to work with?

is it pleasant to deal with him?

is this book hard to get?