3, Although he was innocent, he was sent to prison. 

4, Even though he has a number of relatives living nearby,  he never visits them 

5, Even though she never takes any kind of exercise, she is quite fit and healthy. 

6, Although the keyboard wasn’t working well, she tried to finish the letter 

7, Although the forecast said it would rain, it turned out to be a beautiful day.

8, Even though I’m no better, I’ve taken the bill. 

9, Though the traffic was bad, I arrived at the airport on time. 

10, I didn’t get the job though I had all necessary qualifications. 

11, We enjoyed the vacation although It rained a lot. 

12, Though she felt sick, she went to work. 

13,Even though I was really tired, I couldn’t sleep.

14, Although he is very rich, he isn't happy

15, Though she is very intelligent, she couldn’t answer the question

16 Though he tried, he wasn't successful

17 Although his life is hard, he determined to sudy well

18 though he was wise and experienced, he was not taken in

19 Even though the house isn't nice,i like the garden

20 Even though the house isn't nice,i like the garden

21.Even though bob talkative,eveyone likes him

22 Though I had an umbrella,i got very wet in the rain