阅读下列短文，从文后各题所给的四个选项中选出一个最佳答案。
"What's the matter, mum?" As soon as I enter(进入) the door, I find that my mother is 1. It's unusual--she usually opens the door and welcomes me with 2.
"She's dying," mum says sadly. I 3 what she says. The tulip(郁金香), mother's favourite, is dying.
A month ago, we 4 into our new house and mum bought a very beautiful tulip. Mum liked it very much. 5 she was free, she would sit in her armchair beside the tulip and 6 its beautiful colour and inviting (诱人的) smell.
She 7 it as a baby and looked after it 8. She put the tulip by window and moved it from one place to another to give the tulip enough 9. The first thing she did when she 10 every morning was to water the tulip. Mum also fertilized(施肥) it many times.
She hoped that 11 great care, the tulip would become more and more beautiful and 12. But the tulip was dying because of 13 sunshine, water and fertilizer.
It's 14 that mother loved the tulip. But this kind of love can be harmful. Love can sometimes 15 what you love.
