For each of the following sentences, change the subject of the verb to the plural, and change the verb so that it agrees with its subject. For example:
The hero was enthusiastically welcomed.
The heroes were enthusiastically welcomed.
The studio is used by many artists.
The studios are used by many artists.
1. The radio is broadcasting news every hour.
2. The tomato was being baked.
3. The mosquito woke us up.
4. The soprano performed with the orchestra.
5. The solo was played by the violinist.
6. The archipelago lies off the coast of South America.
7. The silo is used for storing corn.
8. The potato has been boiled.
9. The volcano is not active.
10. The casino was open until one o'clock in the morning.
11. The innuendo should be ignored.
12. The ratio has been favorable.