According to the passage, the problems caused by insects show _______ .
A.their influence on agrieulture and medicine
B.the direct link between evolution and our life
C.fine adaptations to local environments
D.their impact on environment

Mark the letter A, B, C, or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges.
Sometimes Mr. Pike _________work very late at night to do some important experiments.
A.had to
B.has to
C.have to
D.has been

Mark the letter A, B, C, or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges.
Before I___________for that job, I_________________my parents for advice.
A.applied/ had asked
B.applied/ asked
C.had applied/ asked
D.applied/ have asked

Choose the word whose underlined part is pronounced differently from that of the rest.
A.replied
B.required
C.advanced
D.achieved

Relatively few insects have genes that ___________ .
A.make them vulnerable
B.enable them to attack the pesticide
C.prevent them from resisting the chemical attack
D.allow them to survive the pesticide

The word “documented” in the third paragraph means ________ .
A.recorded
B.noticed
C.viewed
D.reviewed

The phrase “an estimated 3 million people” is closest in meaning to _______ .
A.nearly 3 million people
B.about 3 million people
C.over 3 million people
D.3 million people to be exact

_______ (59)
A.had
B.do
C.did
D.made

_______ (57)
A.when
B.at
C.in
D.since

_______ (56)
A.where
B.then
C.that
D.when