根据《担保法》，收受定金的一方不履行约定的债务的，应当（）。

A.全额返还定金

B.2倍返还定金

C.3倍返还定金

D.4倍返还定金

______ you’ve got a chance, you might as well make full use of it.

A．Now that

B．After

C．Although

D．As soon as