请问这题该选什么?
Itisrecommendedthattheproject___untilallthepreparationshavebeenmade.
Aisnotstarted
Bisnottobestarted
Cwillnotbestarted
Dnotbestarted
书上说recommend后加that从句应该接虚拟语气should+动词原型
可这里并没有should+动词原型的可选答案.