1.Every evening after dinner if not ▁▁▁ from work,I will spend some time walking my dog
问题描述：
1.Every evening after dinner if not ▁▁▁ from work,I will spend some time walking my dog
A being tired B tiring C tired D to be tired
2一般表达：You should put your heart into making friends.高级表达：（把上面句子改成否定疑问Wouldn't it be a good idea if...）
3.一般表达：We all know that friendship calls for time and effort.高级表达使用形式主语改写
答
C,tired
Wouldn't it be a good idea if you put you heart into making friends?
It is known by all that friendship calls for time and effort.
1为什么选C我觉着这是一个省略，if i am not tired. 用形容词。