be to blame,be to

详阅：【不定式】to blame,to let,to seek,to rent,to find用【做表语】时,通常用主动表被动意义。例如：Who is to blame?该怪谁呢?She was in no way to blame。决不应该责备她。A better way is yet to seek。。还得找一种更好的办法。The taxi is to rent。汽车出租。Much remains to find。有待探寻。The house is to let。房子出让。