1. 2. и 3. правильно 4. with 5. I hope he won't miss his family during his visit in Moscow.
1. Have already left
2. Have not seen
3. Has she ever been
4. Have you had
В самом начале никто не знает ответов на многие вопросы, но в зависимости от желания можно сдвинуться с мертвой точки и узнать что то новое, желотличи попытки сделать это и отличает дурака от человека просто не знающего ответов на все вопросы
They are tall men
these are potatoes
these are beautiful dresses
the glasses are on the table
these are teeth
the children are in the bedroom
you are nice children
they are housewives
these are leaves