用画线词的对应词填空。

1. Her ______ is an English teacher and her father is a Chinese teacher.

2. My sister is in Beijing and my______ is in  Chengdu.

3. These are his pens and ______are pencils.

4. This is my ______, Mary. And ______ is  my brother, Mike.

5. My  grandmother is sixty and my ______ is sixty-five.

卖方还盘限15日前复到有效，14日下午收到买方复电要求修改交货期，正准备答复时，次日上午又收到买方来电接受发盘。此时( )。

A．已按卖方发盘条件达成合同

B．合同尚未达成

C．已按买方提出条件达成合同

D．合同是否达成无法判断