Answer:
1. Thomas CLEANS his teeth every day. a) is cleaning b) clean c) cleans 2.
2. Georgia IS WEARING her new trousers today. a) is wearing b) wears c) are wearing
3. I DON'T GO to the library every week. a) am going b) don't go c) am not going
4. Rosa and Elena WRITE to their grandmother every week. a) write b) are writing c) is writing
5. Andreas and Jim DON'T MAKE their beds every day. a) making b) aren't making c) don't make
6 I AM NOT WEARING my glasses at the moment. a) wear b) am not wearing c) don't wear
7. We ARE HAVING our breakfast now. a) have b) having c) are having
8. Thomas usually PLAYS the guitar but now he IS PLAYING the piano. a) plays / playing b) play / is playing c) plays / is playing
9 Katya IS GOING swimming now. a) goes b) go c) is going
10 My friends ARE RUNNING in the park currently. a) are running playing b) are running c) is running
I believe from what I see that every sentence has been turned from present tense to past tense. One example could be Number 5- Instead of, 'Peter is going to take the package later.", it could be in past tense, as in Peter already took the package- "Later, Peter took the package."
Hope this helped. Let me know if you have any more questions!