Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
Harmful environmental factors can the development of certain diseases.
A.accelerate
B.generate
C.monitor
D.produce

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
The success of the company in such a market is remarkable.
A.competitive
B.competitively
C.competition
D.compete

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
The dog my father gave me is very lovely.
A.which
B.who
C.when
D.where

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
There has been growing public concern about the use of chemicals in food recently.
A.conservation
B.protection
C.preservation
D.reservation

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
A lot of research in medical science has been to improve human health.
A.taken up
B.given off
C.made up
D.carried out

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
The higher the cost of living is, .
A.the hardest the life of the immigrants becomes
B.the life of the immigrants becomes the harder
C.the harder does the life of the immigrants become
D.the harder the life of the immigrants becomes

Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions.
A.student
B.advice
C.parent
D.doctor

Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.
A.passed
B.opened
C.washed
D.worked

Đun nóng tripeptit với Cu(OH)2 trong môi trường kiềm thu được phức chất có màu
A.
B.
C.
D.

Ý nghĩa của cơ quan thoái hóa trong tiến hóa là
A.Phản ánh sự tiến hóa phân li
B.Phản ánh sự tiến hóa đồng quy
C.Phản ánh chức phận quy định cấu tạo
D.Phản ánh ảnh hưởng của môi trường sống và sự thích nghi của sinh vật.