1.makeadifferenceto/for中for是什么意思呢?前者to我知道是固定用法.2.Themathsproblemremained（）totheboyalthoughexplainedoverandoverA.confusedB.confusing我选的是B,解释句意是：尽管解释一遍又一遍,那

Question

1.make a difference to/for中for是什么意思呢?前者to我知道是固定用法.
2.The maths problem remained （ ）to the boy although explained over and over
A.confused B.confusing 我选的是B,解释句意是：尽管解释一遍又一遍,那道数学题仍然令这个男孩感到困惑.但我没理解这个remained在此处是什么意思.
3.In many cases students （obviously）knew a lot of English words ...这里为什么用obvious的副词形式?
相比于：It was quite （obvious）that she was not going home.这里又用adj了呢?
4.It was （thanks to）your timely help that we accomplished the task on time.我用的是thnking,前面不是was吗?后面还可以接原形吗?

Answer 1

 用to表示“对……（产生影响）”         例：            Does his absence make a difference to your w...