Select the correct subordinating conjunction.

Cats yawn. They have nothing else to do.

until
because

Select the correct subordinating conjunction.

Bill arrived late for school _____ he overslept.

when
while

Select the correct subordinating conjunction.

The cat crept forward slowly _______ the mouse ran into his hole.

if
until
Select the correct subordinating conjunction.

Lucy was quiet ______ her little sister was sleeping.

while
if

Select the correct subordinating conjunction.

You clean your room _______ you have a snack.

after
because