一.请根据括号内错给词的适当形式填空
1.（ ）（they） classroom is new,but （ ）（we）is old.
二.请根据句意及首字母提示,补全句中所缺的单词
2.Mr.King like taking photos and he needs a c____ very much.
3.Mrs.Wang has three children ,one son and two d_____.