蓝皮书上的题 请教一下大家 谢谢了!!!

王小兔兔

1.For many travelers, charter vacations often turn out to cost considerably more than they originally seemed.

A.they originally seemed
B.they originally seem to
C.they seemingly would cost originally
正确答案是A，DE选项都很容易排出，可不明白ABC到底是怎么回事，A是怎么对的也不明白
2.Joplin
’s faith in his opera “Tremonisha” was unshakable; in 1911 he published the score at his own expense and decided on staging it himself.正确答案是to stage the work himself，难道反身代词himself前不需要加一个by吗，我没有查到himself可以这样用的啊？

王小兔兔

非常感谢您！

ptlove4ever

第1题：用一个办法就可以将BC都排除，originally：原先，所以必须接一般过去时，BC都不符合时态要求.
见originally用一般过去时在OG中就有证明，有一句话是：
Originally developed for detecting air pollutants, a technique called proton-induced X-ray emission, which can quickly analyze the chemical elements in 'almost any substance without destroying it, is finding uses in medicine, archaeology, and criminology.
第2题：固定搭配：decide to do，所以原句错。这里himself可以单独用。