Question

The town was enclosed by a strong wall. The enemy was unable to capture it. (combine these two sentences into one simple sentence)
(1) The town was being enclosed by a strong wall, so the enemy was unable to capture it.
(2) The town having been enclosed by a strong wall and the enemy was unable to capture it.
(3) The town had been enclosed by a strong wall, the enemy was unable to capture it.
(4) The town having been enclosed by a strong wall, the enemy was unable to capture it.
(5) none of the above

Answer 1

option (4) is the right one.......

HOPE IT HELPS U !!!

Answer 2

I think number 1 is correct