Mark the letter to indicate the underlined part that needs correction: The assumption that smoking (A) has bad effects (B) on (C) our health have been proved (D).
Mark the letter to indicate the underlined part that needs correction: The assumption that smoking (A) has bad effects (B) on (C) our health have been proved (D).
A. smoking
B. effects
C. on
D. have been proved
* Đáp án
D
* Hướng dẫn giải
The assumption là chủ ngữ chính trong câu, là chủ ngữ số ít.