He has ______ for some years, but his _____ still makes us very sad now.
A：been dead, death.
B：death, dead
C：died, death
D：died, dead
△ABC中，已知(a+b+c)(b+c-a)=bc，则A的度数等于（ ）
——We like Zhang Lili, the most beautiful teacher .——Yes, she is ____________ popular with her students.
