B,Could you sign MayChan's contract agreement extension?

B,Could you sign MayChan's contract agreement extension? 大虾这写得对吗:B,Could you sign (this) MayChan's contract extension? may的否定回答may i park here?--------.please look at the sign NO PARKING over thereA no,you may not B you'better not A: Could you sign the register, please? B: ________A.Yes, please. B.Yes, of course. C.No, thank you. -Could I call you by your first name?-Yes,you ____ .A.will B.could C.may D.might这题中为什么用may,而不用could? 105723:A:could you just sign here,105723:A:could you just sign here,please?and here's your key card.B:thanks.can we get a wake-up call?A:you can set up from the phone in your room.想知道的语言点：1—could you just sign here：怎么翻译?2 -Could Icall you by the first name?-Yes,you（ ） A.will B.could C.may D.might --Could I call you by thefirst name?--Yes,you ___A will B could C may 为什么答案选C呢? (B)Could I call you by your first nameYes,you ____A.couldB.may为什么 _____ you please take out the garbage?A.Could B.May C.Can D.Will ( ) you please help me?A.Can B Could C May D.Shall () I park my car here?I'm afraid you (). The sign says No Parking. A.May;needn't B.May;may not C.Must;needn'tD.Must;mustn't Do you think I could borrow your dictionary?A.yes ,you may borrow B.yes,you could C.yes,help yourself D.yes,go on thank you,but（ ） you please cut me a smaller piecea could b should c may d do — I wonder if I ____ smoke here.— No,you _______.Could you see the sign “No Smoking” there?— I wonder if I ____ smoke here.— No,you _______.Could you see the sign “No Smoking” there?选项:a、can,needn’t b、shall,won’t c、must, could you can you may you will you 的区别?could i may i can i呢 May I go with you?帮我回答A.yes,you can B.yes,you could C.No,you can D.NO,you couldn't 应该选那个 ____ I clean the door?no,you ___.A.need;mustn't B.must C.may D.could