The measurement unit known as a “foot” has originally based on the size of the human foot A. measurement B. has C. size D. foot
Giải thích
Chuyển thành bị động: has --> was.
Theo từ điển oxford, BASE - [usually passive] base somebody/something/yourself in… to use a particular city, town, etc. as the main place for a business, holiday/vacation, etc.
- Base (t.v) – Luôn luôn dung ở dạng bị động