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I really enjoyed your lecture , ______ there were some parts I didn’t quite understand.

A．because          B．unless            C．though           D．a(chǎn)fter

I really enjoyed your speech, ______ there were some parts I didn’t quite understand.

A．because          B．unless            C．though           D．a(chǎn)fter

—Does your grandpa often walk the dog after supper?
— Yes, _________ bad weather stops him.

I enjoyed your lecture very much, ______ there were some parts I couldn’t quite understand.