MARK THE LETTER A, B, C OR D ON YOUR ANSWER SHEET TO SHOW THE UNDERLINED PART THATNEEDS CORRECTION IN THE FOLLOWING QUESTION

Câu 26: Mark the letter A, B, C or D on your answer sheet to show the underlined part thatneeds correction in the following question.Good scientists always cooperate with each others no matter what their nationalities are.A.with B.their C.always D.others