(a) No sooner had they /(b) completed one building /(c) that they started work on another. /(d) No error

(a) No sooner had they /(b) completed one building /(c) that they star

1.	(a) No sooner had they /(b) completed one building /(c) that they started work on another. /(d) No error
A.	(a)
B.	(b)
C.	(c)
D.	(d)
Answer» D. (d)