Question

though we spent a lot,we think it_____because we succeeded in the end.

A .worth B. worth being spent C.worthy of D.worthwhile
答案是D请逐个解析，感激不尽~~

Answer 1

你好~
这里要注意的是think,regard,suppose,这类表示个人看法和观点的词语，后面加it做形式宾语，跟着的词应该是宾补，那么就应该是名词或者形容词~
这样一看就很好排除了，A首先排除，因为虽然worth是有形容词用法的，但是它只能做表语，就是说它只能跟在be动词后面表示价值，比如，it is worth 3000dollars
B的话要注意，worth的用法是be worth doing，那么这里缺少了be动词，应该换成，we think that it is worth doing。 因为worth 是没有被动用法的，所以这里的worth being spent是绝对不可以的
C里的worthy是一样的，用法是be worthy of sth或者be worthy to be done，如果这里只有worthy的话这里就可以用了
D里的worthwhile在做形容词时用法和worthy差不多。后面可以接不定式，比如 it is worthwhile to do sth。所以这里单纯用到了形容词用法是可以的~
所以选D，
有问题可以追问~希望可以帮到你！

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还是没有说清楚为什么选D，做形容词时CD差不多，那为什么不选C？

Answer 2

D.worthwhile

worthwhile 形容词作宾补,"值得的"

句意: 虽然我们花了很多钱,但我们认为这是值得的,因为我们最终成功了.

其它词的用法:

be worth doing =be worthy of being done=be worth to be done
某事值得干

be worth + money 某物值...钱

It is worthwhile to do sth. 做某事是值得的.

如: The book is worth 15 yuan.

The book is worth reading .
=The book is worthy of being read .

The film is worthy of being seen .
=The film is worty to be read .

It is worthwhile to see the film .