45. It can be inferred from the passage that one reason that sociologists may become
frustrated with questionnaires is that ____.
A. respondents often do not complete and return questionnaires
B. questionnaires are expensive and difficult to distribute
C. respondents are too eager to supplement questions with their own opinions
D. questionnaires are often difficult to read
Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best
combines each pair of sentences in the following questions.
Bạn đang xem 45. - Đề thi thử THPT Quốc Gia lần 3 năm 2019 môn Tiếng Anh trường THPT Nguyễn Du