摘要：3．--Do you mind if I smoke? -- A．Why not? B．Yes, help yourself C．Go ahead D．Yes, but you'd better not
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－Do you mind if I smoke?
－________
[ ]
A．Why not?
B．Yes, help yourself．
C．Go ahead．
D．Yes, but you’d better not．
－Do you mind if I smoke?
－________
[ ]
A．Why not?
B．Yes, help yourself．
C．Go ahead．
D．Yes, but you’d better not．
－Do you mind if I smoke?
－________
[ ]
A．
Why not?
B．
Yes, help yourself
C．
Go ahead
D．
Yes, but you'd better not