According to the passage, natural evolutionary change is different from changes caused by humans in that changes caused by humans _______.
A. affect fewer ecosystems
B. are occurring at a much faster rate
C. are reversible
D. are less devastating to most species
Đáp án B
I don’t like to ask people for help as a rule but I wonder if you could _______ me a favor.
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 question.
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 question.
True friendship should be based _____ understanding each other and faithfulness.
“Mom, May I go away to QuangBinh at the weekends to help the unlucky people there?” “______”