完成句子。

1. You ______ (本没必要告诉) her the news, for I had told her about it earlier.

2. The ground is quite wet. It ______ (一定下雨了) last night.

3. We ______ (本该买) a new lock for the front door.

4. You ______ (不可能看见) Bob at the meeting yesterday; he has been on holiday in Paris for a week.

5. — He stayed at a hotel while in New York.

    — Oh, did he? He ______ with Barbara. (也许和Barbara待在一起)

下面是数据段，执行MOV BX，B指令后，BX寄存器中的内容是( )。 DSEG SEGMENT ADB，1234， B DW A DSEG ENDS

A．3231H
B．1234H
C．3132H
D．0000H