Is the following sentence linguistically acceptable?
The equipment we bought last year was more expensive than the one we bought this year.

unacceptable

Is the following sentence linguistically acceptable?
Pat wanted to try to go to Berne, and Chris to go to Rome. to Rome.

acceptable

Is the following sentence linguistically acceptable?
Calvin had eaten.

acceptable

Is the following sentence linguistically acceptable?
which books about cooking does Henri want to buy?
acceptable