情景交际~从那里选择适当的句子补全对话

情景交际~从那里选择适当的句子补全对话
A:by the way
B:could you please buy a book for me?
C:it's nothing serious.
D:i won't keep it long.
E:i'll give the dictionary to you.
F:not at all.
G:take your time.
A;could you lend me your dictionary?
B;sure.here you are.
A;thank you.___1____ i just want to look up a few words.
B;i'm not using it now .___2____
A;thanks.
B;___3_____
A;___4____,are you going to the city this afternoon?
B;yes,what can i do for you?
A;_____5____
B;sure.i'll be glad to.
1.____ 2.____ 3.______ 4._____ 5._____