1 . 选词填空

A. in case of     B. on behalf of        C.no wonder     D. at liberty       E. in conclusion

1. He had made a thorough investigation, ________he knew so much about it.
2. ________ the staff, I wish to extend our warmest welcome to you.
3. He has just installed a safety device for his car ________ break failure.
4. ________, walking is a cheap, safe, enjoyable and readily available form of exercise.
5. All people are ________ to express his own opinion.

2 . 根据句意，选择单词或短语并以其适当形式填空。

A. behalf          B. pedestrian          C. interval        D. chaos        E. agenda

1. The house w   as in ________ after the party.
2. For the government, education is now at the top of the ________.
3. The ________ between major earthquakes might be 200 years.
4. Ingrid was a walker, even in Los Angeles, where a ________ is a rare sight.
5. On ________ of the department I would like to thank you all.