— May I go to the concert with you?
— I’m afraid not ______ you have a ticket, because I have only one.
| A．unless | B．since | C．if | D．though |
— May I go to the concert with you?
— I’m afraid not ______ you have a ticket, because I have only one.
| A．unless | B．since | C．if | D．though |
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