日期:2011-01-19 10:14
we ordered twenty E-4800s，but we want to change themto P-6800s．
L：Just a moment，pleaseOh，I''m sorry，but they have alreadybeen sent．
Dialogue C
（A：Mary''s father B：Jane）
A：Hello．
B：Hi．This is Jane．Is Mary there？
A：I''m sorry．Mary is out right now．She went shopping with her Mom．
B：When will she be back？
A：I''m not sure．Why don''t you call back later this afternoon？
B：Will it be too late if I call around 10∶00 this evening？
A：That''s all right．We don''t go to