[解析]
W:Hey,where is everybody?
M:They took Ben to the park.Where have you been?
W:Sorry,I'm late.I picked up the cake and it took me longer than I expected.When will the party start? M:Ben invited eight children from school.And they'll arrive at about 2 in the afternoon.
W:OK.Then I'll put the candles on the cake and leave it in the kitchen and then I'll come and help set the table.