_______ is one of the country's most pressing social problems.
A.Overpopulation
B.Overpopularity
C.Overpopulating
D.Overpopulated

I would repair my car myself if I ______ my father.
A.was
B.be
C.were
D.have been

If you are kind to me, I _______ good to you.
A.will
B.would have been
C.will be
D.would be

I’ll give you a call if I _____ some help tomorrow.
A.needed
B.need
C.had needed
D.would need

______ is the process of controlling how many children you have and when you have them.
A.implement
B.population
C.explosion
D.family planning

I don’t like this flat. I think I’d be happier if I _____ in a house in the country.
A.will live
B.would live
C.lived
D.live

If I were interested in this subject, I ______ to learn more about it.
A.would try
B.would have tried
C.will try
D.had tried

What’s the ______ of your country?
A.populate
B.populous
C.population
D.popular

Choose the word whose underlined part is pronounced differently.
A.glean
B.breathe
C.nearly
D.creature

Choose the word whose underlined part is pronounced differently.
A.exercise
B.fresh
C.metal
D.generation