4. Ann isn't going home at the moment (right now)
5. They are playing football now.
II. 1. What the cat is doing now? - The cat is sleeping on the mat.
2. What you are doing now? - I'm making a snowman.
3. What they are doing in the garden now? - They are digging in the garden now.
IV. 1. Are 2. Am 3.Is
V. 1,2,3. He/she is вместо they are, we are, the birds are
VI. 1. We are вместо I am
2. They are вместо David is
3. They are вместо Liz is
VII. 1. I'm going to learn French next year
2. He is going to spend holidays on the South
3. We are going to Moscow tomorrow ( We are going to go to Moscow tomorrow также возможно)