Of course，（）most immigrants did not get rich overnight ， but the of them were eventually able to improve upon their former standard of living.

This missile is designed so that once _____ nothing can be done to retrieve it.

Thereareonlytenapplesleftinthebaskets,_____thespoiltones.

Nancy was surprised that they have（），They seemed to be a happy couple.

Shewasonceayoungcountrywifewithchickensinthebackyardandaviewof_______mountainsbehindtheappleorchard.