It can be inferred from the passage that o...

Câu hỏi: It can be inferred from the passage that one reason that sociologists may become frustrated with questionnaires is that

A respondents are too eager to supplement questions with their own opinions

B questionnaires are expensive and difficult to distribute

C respondents often do not complete and return questionnaires

D questionnaires are often difficult to read

Câu hỏi trên thuộc đề trắc nghiệm

Đề luyện vào 10 CHUYÊN môn Tiếng Anh số 1