1) I (am, is, are) Russian. 2) These people ((am, is, are) English. 3) The watch (am, is, are) rather expensive. 4) She (am, is, are) very young. 5) It (am, is, are) a difficult question to answer. 6) The message (am, is, are) very short. 7) I (am, is, are) veryglad to see him.
1. Am
2. Are
3. Is
4. Is
5. Is
6. Is
7. Am