找错并改错。
( ) 1. She hasn't heard a letter from her friend for a long time.
A B C D
( ) 2. I don't know why Kate hasn't replied my letter for half a month.
A B C D
( ) 3. While feeling sad, I can't decide who to talk.
A B C D
( ) 4. Look, there are someone painting the wall in the fitting room.
A B C D
( )5. Everyone of us considers Tom the cleverest boy in our class.
A B C D
冠折2/3，已完成根管治疗。牙根稳固，X线片检查未见异常，拟做烤瓷桩冠修复，桩核类型的最佳选择是（）。