【D7】FRANK: I JUST RECEIVED A LETTER FROM ONE OF MY OLD HIGH SCHOOL BUDDIES. SARAH: 【D5】__

【D7】

FRANK: I JUST RECEIVED A LETTER FROM ONE OF MY OLD HIGH SCHOOL BUDDIES. SARAH: 【D5】______ FRANK: WELL, ACTUALLY I HAVEN" T HEARD FROM HIM IN AGES. SARAH: TO BE FRANK WITH YOU, I" VE BEEN OUT OF TOUCH WITH MOST OF MY OLD FRIENDS. 【D6】______ FRANK: I KNOW. IT"S REALLY HARD TO MAINTAIN CONTACT WHEN PEOPLE MOVE AROUND SO MUC

H. SARAH: THAT" S RIGHT.【D7】______BUT YOU" RE LUCKY TO BE BACK IN TOUCH WITH YOUR BUDDY AGAI

N. A. PEOPLE JUST DRIFT APART!

B. THAT"S NICE!

C. ONLY ONE OR TWO STILL KEEP ME POSTED ABOUT WHAT THEY ARE DOIN

G.

D. DO YOU OFTEN KEEP IN TOUCH WITH THEM？

请帮忙给出正确答案和分析，谢谢！