Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
Towards the end of the fifteen century, many political and social changes _____ in Europe which _____ all countries.
A.had been occurring/ would affect
B.had occurred/ affected
C.were occurring/ have affected
D.occurred/ had affected
Towards the end of the fifteen century, many political and social changes _____ in Europe which _____ all countries.
A.had been occurring/ would affect
B.had occurred/ affected
C.were occurring/ have affected
D.occurred/ had affected
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Hóa Học lớp 12
