根据对话内容，在空白处填写适当的话语（话语可能是一个句子，也可能是一个短语或一个词），使对话完整。

A: Did you and Amy have fun last night, Tina?

B: Well, yes and no.

A: Why did you say so?

B: Because Amy was late.  The party was nearly over when she 1._____．

A: What happened to her?

B: On the way there, she 2._____ her bike and hurt her left leg.

A: 3._____?

B: We put some medicine on the cut and covered it with a clean cloth.

A: I hope she will be better soon.  And 4._____?

B: Sure.  Loud music made me want to dance, and the food was great.

A: What do you think of the movie last night?

B: It was a really good movie, but it was 5._____ sad that it made us cry.

A: Oh, it's time to go home now. Bye.

B: Bye.

我国是温室气体排放大国，发展低碳经济既是长久的大计，也是当前的大事。为此，企业应该[ ]

①转变经济发展方式，努力扩大生产②承担社会责任和环境责任，实现可持续发展③加强科技开发与应用，成为技术创新的主体④以营利为企业生产经营的根本出发点

A．①④

B．②③

C．①②④

D．①②③