【推荐2】The murder case has been dismissed in the ________ (absent) of any definite proof. (所给词的适当形式填空)

【推荐3】The _____(absent) of a quiet place at home where children can study was also having a negative effect. (所给词的适当形式填空）

【推荐1】Pat refused to give her any ______ (inform) about Sarah. (所给词的适当形式填空）

【推荐2】They asked him to give a speech, but he made no ________(respond)．(用适当的词填空)

【推荐3】原文填空
1. The World Wide Web allows computer users to ______ information from millions of websites______ the Internet.
2. So as you can see from what I've said, I'm a ______ kind of person. But there is one thing I really love— I'm crazy about football.
3. As a result, cocaine users sometimes have heart ______. Smoking crack cocaine also causes anti-social _______.
4. Users become ______ to crack cocaine much more ______ if they smoke it.
5. While he was still a ______ Mozart was already a big star and ______ Europe giving concerts.