23 Fill in the blanks. Use the words and phrases from Ex. 22. 1. Do you think she'll ... to pass her maths exam? 2. Sir, I've finished writing my tests. Can I ...? 3. During the World War II Russians ... their courage many times. 4. Teenagers are hard to .... But our teacher does it quite successfully. 5. Radio ... to be the most common mass media. 6. Can you ... that you are right? 7. My mom is always at home. She ... working last year.