I became a student ten years . I have been a student1996. I have studied here_____ about 10 years. A. ago, since, for B. ago ,for ,since, C. ago, before, for D ago, in, after
---It is reported that a Boeing 777-200 plane became lost in communication (失去联系) at midnight __________ the early morning of March 8th.
---I was amazed to hear that.