1. needn't
2. needn't
3. mustn't
4. must
5. must
6. must
7. must
8. needn't
9. mustn't
10. must
If I visit an american school I will be go there again
Привет детка (крошка)
Hi, baby!
National, exactly, protection, impossible, wonderful, ecological
3. 1)At the moment
2) Bought
3)since
4)visits
5)will be flying
6)yet
7)-
8)is rising (возможно)
9)-
10) Will you be going
11) costs
12)ever
Ответы на остальные задания к сожалению не знаю(