很高兴为您
It seemed certain that she 【】the first ship home.
你空格位置打错了吧
过去将来时态：还原成一般时态为It seems certain that she will/is going to be the first ship home
seemed用过去式,根据主从一致,从句的一般将来时也变过去为过去将来时would be / was going to be
没有B 这种用法would be going to be好像双重将来时态,但没有这样的用法.
A would go to be 将去成为,重复了,用would be就可以了.
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