_______(63)
A.that
B.where
C.thing
D.which

_______(64)
A.rulers
B.law
C.standard
D.stipulations

______(66)
A.able
B.responsibility
C.responsible
D.charge

Mark the letter A, B, C or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.
They finished one project. They started working on the next right away.
A.Had they finished one project, they would have started working on the next.
B.Only if they had finished one project did they start working on the next.
C.Hardly had they finished one project when they started working on the next.
D.Not until did they start working on the next project when they finished one.

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
This survey is to find out the young people’s attitudes _______ love.
A.into
B.with
C.for
D.toward

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
The equator is an ______ line that divides the Earth into two.
A.imaginable
B.imaginary
C.imagination
D.imaginative

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
It was not until the end of the nineteenth century ______.
A.did plant breeding become a scientific discipline
B.that plant breeding became a scientific discipline
C.that a scientific discipline was plant breeding
D.did a scientific discipline become plant breeding

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
My mother _____ strawberries for years but she has never had such a good crop before.
A.had grown
B.is growing
C.grew
D.has been growing

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
______ get older, the games they play become increasingly complex.
A.For children to
B.Children, when
C.Although children
D.As children

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
If the world’s tropical forests continue to disappear at their present rate, many animal species _____ extinct.
A.would become
B.would have become
C.became
D.will become