--Could I use your mobile phone?肯定回答和否定回答分别是什么

. — I wonder if I could use your mobile phone. could may need must 肯定回答否定回答分别是什么? Could I use your English book?（作否定回答） 英语填词一道Could I use your mobile phone Why not use your o______ Could I borrow your dictionary?肯定回答是什么? Excuse me,but could I use your mobile phone for a while?__.I could i use your mobile phone ----------.it isnt working的答语是 Could I use your bike?（肯定回答）______ ______ ______. couLd i borrow your book?否定回答 ls this your mobile作肯定回答 may I ,could I,等这些的肯定和否定回答 Can I use your English book(作肯定回答）