Challenger

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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:

We will have to go ___ she comes with us _not.

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

Of the two leading parties _____ party got a majority in the election :

The train was late. ________ I managed to arrive on time.

Maya knew ______ he needed to hurry up.