The film show(a)/began(b)/when we arrived(c)/in the hall(d)/No error(e)

https://things-for-students.blogspot.com/2022/07/the-film-showabeganbwhen-we-arrivedcin.html
The film show(a)/began(b)/when we arrived(c)/in the hall(d)/No error(e) 1. (a) 2. (b) 3. (c) 4. (d) 5. (e) Correct Answer: b [had began should be used in place of began]