The headmaster thinks it advisable that Mrs.Brown( )to the job sinceshe has much experience in teaching French.
A should be assigned B will be assigned C has to be assigned Dmust be assigned
因为形容词advisable是表示建议。这种表示建议、命令的动词以及衍生的形容词或者过去分词，决定了从句要用虚拟语气比如It was suggested that she (should) join the party.这里的suggested过去分词表示建议，决定了要用虚拟语气再比如it was advisable that he (should) think deeply before acting.形容词advisable表示建议，决定了要用虚拟语气。...
