MARK THE LETTER A,B,C OR D ON YOUR ANSWER SHEET TO INDICATE THE CORRECT ANSWER TO THEFOLLOWING QUESTION

Câu 45: Mark the letter A,B,C or D on your answer sheet to indicate the correct answer to thefollowing question.- Without your help, I the technical problem with my computerthe other day.A.can’t solve B.couldn’t have solvedC.wouldn’t solve D.could solve