Exercices de Anglais : The passive voice

Transform the following sentences from the active voice into the passive voice. Remember that the object of the active sentence becomes the subject of the passive sentence. 1) 'The chef cooks the meal.' 2) 'The student writes the exercise.' Note: The auxiliary verb $be$ must be conjugated in the same tense as the active verb (Present Simple).

Transformez les phrases suivantes de la voix active à la voix passive au présent simple.

1. The chef prepares delicious meals.
2. Scientists study the climate change.

Indice : N'oubliez pas la structure : $Sujet + BE + Participe Passe (+ par + agent)$

Transformez les phrases suivantes de la voix active à la voix passive. Attention à la structure $be + participe passe$.

1. The chef prepares delicious meals every day.
2. Alexander Graham Bell invented the telephone in $1876$.
3. Thousands of tourists visit the museum during the summer.
4. Scientists discovered a new planet $X_1$ last year.