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1. The tennis coun was being used at the time 

2. Their homework should be done before going to school 

3. If he came, I would speak to him about it 

4. If he had prepared for the interview, he would have gotten the job 

Chúc bạn học tốt !!!

1,people were using the temis coun at that time ( passive voice)
=>the temis cous was being used coun at that time.
2,they should do their homework before going to shool ( passive voice)
=>their homework should be done before going to shool.
3,he doesn't come , so I can't speak to him about it.
=>If he came , I could speak to him about it.
4,he didn't prepare for the interview .so he didn't get the job
=>If he had prepared for the interview , he would have got the job.

#NOCOPY