．_________we are allowed- , we can’t drink any beer.
| A．As long as; to do | B．Unless; to |
| C．Until; doing | D．On condition that; doing so |
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．_________we are allowed- , we can’t drink any beer.
| A．As long as; to do | B．Unless; to |
| C．Until; doing | D．On condition that; doing so |
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