Bonjour !
1. I've bought a new word-processor, a more modern one. Mine was getting old.
b. You can insert several words in the text. Choose the most appropriate ones and delete the others.
c. My computer underlines my spelling mistakes. I think it's the most useful innovation !
d. With my new printer, the coulours are brighter than with the old one.
e. At the shop, they told me this printer was the best they had.
J'espère t'avoir aidé. Bon courage !