1.
For
Since
For
For
Since
For
2.you go
You lives
See
Beel
3.ты должен(-жна) сама составить ответы на yes/no
I can play football
I should take this medicine
Children have to do what they are told
You may take...
We should...
I must...
He may (но это не точно)
Can I come in?
Can I help you?
You should...
A fish can...can't...
...But I have to...
...His sister must...
Я не уверен на счет 8 и 15, а вообще в большинство пропусков можно подставлять разные варианты, ибо это по большей части зависит от контекста
A hundred books, a hundred pages, a hundred men, a thousand cars, thousands men, a million books.
1.climb
2.are you running
3.wakes
4.have
2)not always