What are the different forms of etre and when do you use them?

The play performance was going extremely well, and the audience's acclaim proved this. the cast members bowed and basked in the endless applause. there wasn't one person sitting in their seats. the play had been a great success! acclaim means

¨ill in the blank with the appropriate past-tense form of the verb in parenthesis. est-ce que tu __ au professeur ? (parler)¨

Any french speakers? i need some . could someone check the grammar of my french translations? 1. i would get a card for a bookstore. > > > *je voudrais acheter une carte-cadeau pour la librairie en le centre commercial.*2. they would have to go to the bookstore, the jewelry store, and flower shop. > > > ils devraient aller à la librairie, la bijouterie et le fleuriste.3. a good amount to spend would have to be a few hundred dollars. > > > un bon montant à devrait être de quelques centaines de dollars.4. i decide what present i am going to get for a person by thinking about what would be important to them. > > > je décide quel cadeau je vais chercher pour une personne (by thinking about) ce que cela important pour leur. for the 4th question, how would i say "by thinking about" in french? and by the way, i need the french sentences checked, those are what i wrote.