1.D 以前我和父母经常吵架,但是现在我们相处的很好
2.C.it 做形式宾语,真正宾语是when and where the meeting would be held整个句子.
3.D.别再说了.你的解释只能增加他的误解,你难道没看出来吗?
add A to B,把A添加到B中.Add some woods to the fire,please.请在火里添点柴.
add to,增加困难,麻烦,美等抽象化名词.
The lights here add to the beauty of the city.这里的灯增加了城市的美.