Passive voice

It ............................three days ago.
1. was written
2. has been written
3. is written
4. written
This book....................................... soon.
1. is publish
2. published
3. will be published
4. will published
It .................................. on TV three times up to now.
1. is shown
2. was shown
3. shown
4. has been shown
These machines.................. in Germany.
1. are make
2. are made
3. was made
4. must made
The bread .................................... now.
1. is baking
2. is being baked
3. is baked
4. was made
English ............................... all over the world.
1. is spoken
2. are spoken
3. spoken
4. is spoke
This cave .....................................yet.
1. is explored
2. has explored
3. hasn't been explored
4. hasn't explored