甲羊的去核卵细胞与乙羊体细胞的细胞核“组装”成一个新的细胞，该细胞多次分裂后植入丙羊的子宫内发育，产下羊羔的毛色和性别分别与哪只羊保持一致(　　)

补全对话。每空一词。

Dave: Hi, Mona! I am going to have a birthday ____. I want to have it on Saturday evening. Can you come?

Mona: Oh, I am going to  ____ my grandfather on Saturday evening.

Dave: What about Sunday?

Mona: I have to take the piano lessons.

Dave: Oh! When are you ____ then?

Mona: Well, Friday is fine.

Dave: Friday? That’s tomorrow! OK. We can have it then. Can you ask Ali to ____    us?

Mona: Sure. When and where shall we meet?

Dave: Near our school gate at half ____ four.

Mona: Great! See you then!

Dave: Bye!

下列关于细菌的叙述正确的是（  ）