______developing countries need to do is to stop poverty.

A. How B. That C. Which D. What

Recently, there a boom in population movements.

A. is B. was C. has been D. had been

Wind power units are placed ______ there is a lot of wind.

A. where B. when C. which D. that

One solution to this problem now is sustainable development.

A. discussed B. discussing

C. to be discussed D. being discussed

– Who is the man standing there?

– If you know, his name is Mike.

A. must B. can C. may D. would

This is a simple idea, but that is hard to put into practice.

A. one B. it C. that D. those

The people, _______ had been damaged by the flood, were given help by the Red Cross.

A. all their homes B. all whose homes

C. all of their homes D. all of whose homes

It was to you and not to anyone else I lent the money.

A. whom B. why C. that D. whether

So popular that many people went to see the film adapted from it.

A. was the book B. did the book

C. the book was D. had the book

There is a saying that ______, “Teach a man to fish, and you feed him for the rest of his life.”

A. go B. went C. goes D. is going