Сделать вопросительную форму)1)The sailors are washing the deck now2)We can see

1)The sailors are washing the deck now.

Are the sailors washing the desk now?

2)We can see high wave on the sea.

Can we see high wave on the sea?

3)The ship is at the dock now.

Is the ship at the dock now?

4)There are many foreign vessels in our port?

Are there many foreign vessels in our port?

Чтоб сделать вопросительную форму нужно сильный глагол просто поставить на 1-ое место. Сильные глаголы - это can, am, is, are.