1 . 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.

2 . Kelly pretended ____________ (write) her homework when her mother walked into the study. (所给词的适当形式填空)

3 . When her mother came in, she pretended _________(read). (所给词的适当形式填空)

4 . A government official is believed _______________ (investigate) the case at the moment, but no one knows who it is. (所给词的适当形式填空)

5 . He pretended _________（read）an important paper when the boss came in. （所给词的适当形式填空）

6 . The fire is reported ________（expand）at present, for the wind is quite strong. (所给词的适当形式填空)

7 . 达成协议的希望看来已逐渐渺茫。
Hopes of reaching an agreement seem to be __________________.

8 . These kids pretended ______ when he was telling them the same joke ______ he did last time.

A．laughing; which	B．to have laughed; as
C．laughing; /	D．to be laughing; that

9 . His first book ____ next month is based on a true story.

A．published

B．to be published

C．to publish

D．being published