Is this correct?<br/><br/>She can drive; she has been able to drive for fifteen years.<br/><br/>The choices were:<br/><br/>can drive<br/><br/>is able to drive<br/><br/>could drive<br/><br/>has been able to drive<br/><br/>and how about this one, they seem so easy, but I am afraid I am missing something!<br/><br/>He ____be from Spain. He doesn't speak Spanish.<br/><br/>The choices were:<br/><br/>mustn't<br/><br/>isn't possibly<br/><br/>can't<br/><br/>must