从对话后的选项中选择适当的选项补全对话。

A：Hello! Is that Miss Green speaking?

B：I'm sorry．____1____ Could I take a message?

A：OK．I want to say something about my son．__2___ I'm afraid he can't go to school today．

B：___3____ I hope he'll be better soon．

A：Thank you．Could I leave my number for you?

B：OK．___4____ I'll go and get a pen．Well，your number，please!

A：23758200．Many thanks．Goodbye!

B：Goodbye!