Must I attend the meeting?_____.选项:a、Yes,you need b、 No,you

Must I attend the meeting?_____.选项:a、Yes,you need b、 No,you may i speak to Mary?___________.A.yes,you must.B.no,you need may i smoke here?A yes,you must B yes,you please C no you ne Must you go now?A.yes,i need B.yes,i may C.yes,ican D.yes,ih （） l clean the room?yes you A Must can B Must may C Need nee Must i still stay here now _______ A yes,you do B no,you may Need I pass the bowl to you -------------- A.Yes you need B. you need a No.103 bus.对No.103提问 _____ _____ _____ I need. Can you fly a kite?—_____ A.No,I can't.B.Yes,I can.C.Yes,I c May I sit here?_____ A.No,you may not .B.Yes,please.C.I don' It looks heavy.Can I give you a hand?_____ A No,thanks B Yes May I watch TV now?A.Yes,you may B.No,you need not选哪个,为什么?