根据对话内容，从对话后的选项中选出能填入空白处的最佳选项。选项中有

两项为多余选项。

— Hello, Jerry speaking.

— Hello, Jerry. It's me John here. 1._____

— Well, I'm terribly sorry. I'm not feeling very well.

— Is that all? 2._____

— No, I'm sorry. I was sick all night. I think it must be the fish that I ate last night.

— Well, I think you should have at least phoned Kate and told her you weren't  coming to the meeting.

— 3._____ I'm sorry about that. Anyway, I think I'll be able to get to work tomorrow.

— 4._____

— I won't. Thanks for calling.

— 5._____

A. Why didn't you phone?

B. OK. Take care and don't eat any more fish.

C. Why aren't you here at the meeting?

D. That's all right.

E. We thought you might have had an accident or forgotten the day or something.

F. I'll be glad to see you again.

G. Yes, I suppose I should have done so.

为了支持压栈线程与弹栈线程之间的交互与同步，在程序的下划线处依次填入的语句是（）。
publicclass IntStack
privateintidx=O；
privateint[]data=newint[8]；
public______voidpush(inti)
data[idx]=i；
idx++；

A．synchronized()

B．synchronized     notify() this.wait()

C．synchronized

D．Serializable     this.notify() sleep()