The disappearance of one or several species may result in the loss of _________ .
A.conservation
B.exploitation
C.diversity
D.biodiversity

A.extinction
B.construction
C.endangered
D.wonderful

A.animals
B.characters
C.imagines
D.advantages

A.chewed
B.survived
C.enjoyed
D.noticed

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
Why don't you _____ these photos into your computer, because then you would have your own digital copies.
A.change
B.scan
C.put
D.give

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
Although the ______ construction costs of environmentally friendly houses are very high, they are very economical in the long run.
A.first
B.introductory
C.initial
D.opening

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
His brother refuses to even listen to anyone else's point of view. He is very _______.
A.open-minded
B.absent-minded
C.narrow-minded
D.kind-hearted

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
Judging from Susana's reactions, I'm not sure how much of the professor's explanation she ____________.
A.put through
B.got across
C.took in
D.brought up

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
As soon as she came _________ after the operation, she asked for a cup of water.
A.up
B.across
C.round
D.along

A.incredible
B.fascinating
C.difficult
D.carefully