Question:

_________ you ring the bell , they won't open the door

AIf

BUnless

CThough

DTill

Answer:

B. Unless

Explanation:

'Unless' is a subordinating conjunction.


Related Questions:

He failed ____ his best efforts.

_______ had I reached the stadium, than the match started.

It was ____ a hot day ____ nobody could do any work. Choose the suitable conjunction.

_____ he is the most intelligent student, he is not at all proud.

Maya knew ______ he needed to hurry up.