A:I am really anxious,because _______________________
B:Your backpack? I saw it still on your back in the Shopping Center just now. You need to think hard ____________________________
A:I think I dropped it during the shopping.So____________________
B:Well,let's hurry up to look for it. I guess a kind shop assistant might have found it and she______________________________
A:I really need it. Oh,wait a minute ,do you think the Shopping Center is still open now?It's already 6:00 pm.
B:Yes,____________________________until 9:00 pm.
A:I wish I could find it as soon as possible.