Chất nào dưới đây hầu như không bị biến đổi trong quá trình tiêu hoá thức ăn?
A.Axit nuclêic.
B.Lipit.
C.Vitamin.
D.Prôtêin.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
You are old enough to take _______ for what you have done.
A.irresponsible
B.responsibility
C.responsible
D.responsibly

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.
Mrs. Pike was so angry that she made a ____ gesture at the driver.
A.rudest
B.rudeness
C.rudely
D.rude

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each unfinished sentence.
Some people are concerned with physical _______ when choosing a wife or husband.
A.attractively
B.attractive
C.attractiveness
D.attract

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
The plan was ______ developed by a team of experts.
A.system
B.systemize
C.systematical
D.systematically

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
There is too much____ in this world.
A.greed
B.greedy
C.greediness
D.greedness

Choose the best answer to complete the following question.
This is very _______! Can’t you practice your violin somewhere else?
A.convenient
B.convenience
C.conveniently
D.inconvenient

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
Her mother told her not to be too _____ and advised her to try to do things herself.
A.depending
B.independent
C.dependence
D.dependent

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
During the presentation, each _______ can pose three questions to the guest speaker.
 
A.attendance
B.attendee
C.attentive
D.attend

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each unfinished sentence.
The rhinoceros, whose numbers have dropped alarmingly recently, has been declared a(n) _______ species.
A.endangered
B.danger
C.dangerous
D.endanger