Mark the letter A, B, C, or D on your answer sheet to show the underlined part that needs correction in each of the following questions.
In a critical review of an experiment, a researcher should question (A) the validity,(B) the reliable,(C) and the importance (D) of any test results
A. question
B. validity
C. the reliable
D. importance
Đáp án C
“reliable” -> “reliability”, Ở đây ta cần một danh từ, vì phía trước phía sau luôn sử dụng danh từ (validity, importance)
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