He switched on (A)/ the light before (B)/ he entered (C)/ the room (D)/ No error(E).

He switched on (A)/ the light before (B)/ he entered (C)/ the room (D)

1.	He switched on (A)/ the light before (B)/ he entered (C)/ the room (D)/ No error(E).
A.	A
B.	B
C.	C
D.	E
E.	E
Answer» F.