Answer:
1. The tests are being corrected (by the teacher)
2. The money must be given to you.
3. TV is being watched (by Tom).
4. How can French be learned?
5. A party will be thrown (by my friends)
Step-by-step explanation:
There are few rules to follow when changing active sentence to a passive voice:
1) Identify the object - object of the active sentence becomes the subject of the passive
2) Identify the tense - verb of the passive sentence will be the adequate form of the verb "to be" in the active sentence's tense
3) Identify the verb - verb of the active sentence will, with the adequate form of the veb "to be", become the verb of the passive sentence. However, note that this main verb must be written in its past participle.