根据对话内容，选出能填入空白处的最佳句子。
A: Hello, Sam?
B: Maria? Hi！{#blank#}1{#/blank#}
A: I'm in Mexico! {#blank#}2{#/blank#}
B: Oh, thanks.
A: So how is it going there?
B: Great! {#blank#}3{#/blank#}
A: Pretty good. {#blank#}4{#/blank#}
B: Terrible. It's cold and raining.
A: Well, {#blank#}5{#/blank#}
B: I'm having a party. My whole family is here.
A: That sounds like fun.

——No problem.

— ________. That's what friends are for.

—______.

 — _________

—_________.