1 . My first i__________ of him was that he was a kind and thoughtful young man. (根据首字母单词拼写)

2 . It was the professor rather than his assistants that was entirely ______(blame) for what hadhappened in the lab. (所给词的适当形式填空)

4 . We felt a great sense of ________ (achieve) when we reached the top of the mountain. (所给词的适当形式填空)

5 . With his attention________（集中）on his book, he didn't even look up when we came in.（根据汉语提示单词拼写）

6 . What is the author’s preferred solution ________ global warming? (用适当的词填空)

7 . She left me with the i________ that she was unhappy with her job. (根据首字母单词拼写)

8 . Her voice was soft but ________(confidence) as she pointed to the corner near the windows. (所给词的适当形式填空）

9 . ________ from space, the earth, with water________ 70% of its surface, looks like a blue ball.

A．Seen; covered

B．Seen; covering

C．Seeing; covering

D．Seeing; covered

10 . It was ________ (possible) for anyone to get in because no one knew the password (密码). (所给词的适当形式填空）