Transformation ...

From the below options, identify the sentence which is in passive voice:

Change from indirect to direct speech:
The professor said that Mercury is the first planet in the solar system. 

Which of the sentence(s) below is/are in active voice:
1. The teacher taught the students.
2. The students learnt from the teacher.
3. The students were taught by the teacher. 
4. The students did not learn from the teacher.

Fill in the blank with the correct passive verb form:
Plants _________ by the gardener every evening.

Fill in the blank with the correct passive form:
Sugar and tea _________ by the grocer.

Choose the correct passive form from the options given below:
Madame and Monsieur Curie ___________ the Nobel Prize for Physics in $$1903$$.

Choose the correct passive form from the options given below:
A prayer _________ by the choir in the church next week.

Fill in the blank with a suitable verb form:
Tennis ________ by the players of our school at this time.

Choose the correct passive form from the options given below:
When ___________ America ___________?

Choose the correct passive form from the options given below:
English ________ all over the world.