I’m terribly sorry to keep you waiting for so long． — _______．

Have you finished your work yet?　—No, not yet. I think it’ll take _____ ten minutes.

_____ the fans are waiting for the popular singer outside the concert hall.

Nanyang has changed a lot in the past five years. —Yes. You can see lots of new buildings ,flowers and trees on ___side of the street.

____________you swim? —Yes，but I’m not a good swimmer.