3. In spite of my tiredness, I couldn't sleep.

4. Despite having little money, they are happy.

5. Although my foot was hurt, I managed to walk to the nearest village.

Change into passive voice

1. Letters are typed by Mary in the office.

2. You will be helped by my father tomorrow.

3. The human life has completely been changed by science and technology.

3.in spite of being tired ,i couldnt sleep

4,In spite of having little money,we are happy 

5.Although my foot was hurt,i managed to walk to the nearest village

1.letters are types in the office by Mary

2.you will be helped by his father tomorrow

3.the human life has comletely been changed with science and technology