IT HAS BEEN A LONG TIME SINCE THEY MET.A. THEY HAVEN'T MET FOR A LONG...

5: It has been a long time since they met.

A. They haven't met for a long time. B. They didn't meet a long time ago.

C. They didn't meet for a long time. D. They haven't met since a long time.

Choose the word whose underlined part is pronounced differently from the rest in each group.