1: These computer games are sold all over the world.

2: How are candles made ?

3: Students are going to be showed an old bone by the professor.

4: This photo wasn't taken by Mary.

5: My mind can't be changed.*

6: Has the window of the laboratory been changed?

7: What books are being read this year ?

8: Essential fatty acids or vitamins can't be made by our body, so we must obtain them through diet.

 - Hope this help -

1, these computer game are sold allover the world

2, how are candles made?

3, students are going to be showed an old bone by the professor.

4, this photo wasn't taken.

5, my mind can be changed.

6, has the window of the laboratory changed ?

7, what are books being read this year?

8, essential fatty acids or vitamins cannot be made by our body, so we must obtain them through diet.