I watched him _____ he disappeared from the sight in the distance.A.SinceB.AfterC.UntilD.Because_____ I admit that problems are difficult ,I do not agree that they can not be solve.A.WhileB.SupposeC.BecauseD.Until 这两道题一点思路都没有,奇奇怪怪的,请高人指教,

问题描述:

I watched him _____ he disappeared from the sight in the distance.
A.Since
B.After
C.Until
D.Because
_____ I admit that problems are difficult ,I do not agree that they can not be solve.
A.While
B.Suppose
C.Because
D.Until
这两道题一点思路都没有,奇奇怪怪的,请高人指教,

1. C until 直到…为止, 这个不难理解,句子的意思是:我一直看着他从我的视线中消失(在远处)。
2. A While 虽然;尽管 意思是:虽然我承认这些问题挺难,但是我不同意它们是无法解决的
(也就是:我认为它们是可以解决的)

c it seems a little confusing though
a 'while' can be used as a transition like 'although'

c until 我看着他直到消失在远方
until 直到.为止的意思
while 有虽然得意思,虽然我承认这问题有些难,但我不认为解决不了.