题目

Dear Emma,     Your problem is like a circle. The harder you study, the less time you have to make friends and the less friendly you look to your classmates. The fewer friends you have, the harder you study to make yourself feel better.   Try to break this bad circle. Perhaps you are afraid of meeting new people, because you are too shy or too serious. You are not. Everyone has a fun side to his character. Posh your shy side away and show your classmates how much fun you can be.     Look at your classmates. Are there any people with whom you feel you have a lot in common?     －They used to be good friends but now they are like strangers. －How________this________?A. did; come about                              B. did; happen toC. was; ended up                                D. was; happened