Mr .black works___________a magazine may i use your computer

Mr .black works___________a magazine may i use your computer -May I use your computer this afternoon?怎么回答? -Could I use your computer? May I use your computer?＿＿＿＿ doesn't work. A.Your May I use yuor computer this afternoon? -May I use your tricycle? -May I use your dictionary?---- May I use your dictionary May I use your pen? ---May I use your cellphone? may i use your rubber? May I use your telephone?