The safest way to get the English language pack is directly from Autodesk.
Designed to work with both standalone and suite-based installations. Where to Download the English Language Pack autocad 2018 language pack english download repack
Instead of using potentially risky third-party "repacks" which may contain malware or cause system instability, use the Autodesk Account Portal for a verified download: Log in to your Autodesk Account. The safest way to get the English language