MARK THE LETTER A, B, C, OR D ON YOUR ANSWER SHEET TO SHOW THE UNDERLINED PART THAT NEEDS CORRECTION

Câu 26: Mark the letter A, B, C, or D on your answer sheet to show the underlined part that needs correction. (A) In spite modern medical technology, (B) many diseases caused (C) by viruses are still (D) not curable. A. In spite B. many C. by viruses D. not