1 . It seemed that the little boy was lying. (句型转换)
→ The little boy seemed ________   ________   ________ .

2 . It is said that carbon dioxide is heating the earth twice as quickly as previously feared. (同义句转换)
Carbon dioxide is said __________ __________ __________ the earth twice as quickly as previously feared.

3 . He pretended ________(study) when his mother stepped into the room. （所给词的适当形式填空）