David is an engineer in the modern car factory.David___ ___ an engineer in the modern car factory.

David is an engineer in the modern car factory.David___ ___ an engineer in the modern car factory.
David is an engineer in the modern car factory.
David___ ___ an engineer in the modern car factory.

David is an engineer in the modern car factory.David___ ___ an engineer in the modern car factory.
works as

works as

David works as an engineer in the modern car factory.