1. goes to the park every day. (Correct)(Incorrect)
She goes to the park every day. (Correct)
2. Marina's often visit her. (Correct)(Incorrect)
Marina's friends often visit her. (Correct)
3. I see a dog. very large. (Correct)(Incorrect)
I see a dog. It is very large. (Correct)
4. It is difficult . (Correct)(Incorrect)
It is difficult to be a doctor. (Correct)
5. What now? Do you want to go for a walk? (Correct)(Incorrect)
What are you doing now? Do you want to go for a walk? (Correct)
6. There a lot of children in the park yesterday. (Correct)(Incorrect)
There were a lot of children in the park yesterday. (Correct)
7. Look! There a lot of snow on the roof. (Correct)(Incorrect)
Look! There is a lot of snow on the roof. (Correct)
8. There is on the table. (Correct)(Incorrect)
There is no bread on the table. (Correct)
9. Anna and Maria went to the sea last summer and to swim there. (Correct)(Incorrect)
Anna and Maria went to the sea last summer and learned to swim there. (Correct)
10. I'm sorry, but I for work right now. I don't want to be late. (Correct)(Incorrect)
I'm sorry, but I have to leave for work right now. I don't want to be late. (Correct)