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
This is a simple idea, but that is hard to put into practice.
A. one B. it C. that D. those
– Who is the man standing there?
– If you know, his name is Mike.
A. must B. can C. may D. would
One solution to this problem now is sustainable development.
A. discussed B. discussing
C. to be discussed D. being discussed
Wind power units are placed ______ there is a lot of wind.
A. where B. when C. which D. that
Recently, there a boom in population movements.
A. is B. was C. has been D. had been
