一、用所给词的适当形式填空（每题1分，共10分）
1. The English-language paper Beijing Today is now a(n) _________ (week) publication.
2. The _________ (mud) water flowing into the lake clouded the water.
3. I wonder if we could make a(n) _________ (arrange) to meet sometime next week.
4. The equipment requires a(n) _________ (adjust) because the present reading is not accurate.
