Question

—I really don’t know how to thank you enough .— . A．No ...

—I really don’t know how to thank you enough .— . A．No problem B．Think nothing of it C．Not at all D．It doesn’t matter

Answer 1

8.B

think nothing of it：used as a polite response to apologies, thanks, etc,用作回应道歉.感谢等的客气话。故选B。