be happy + 介词

Question

I won a big prize. So my mother ______ me.
A, is happy to B, is happy at C, is delighted to D, is delighted for 应该选哪个？为什么？请详细解答
为什么选D

Answer 1

be delighted for sb是指对某人感到高兴，或者be delighted to do sth，很高兴做某事。是固定搭配的词组。
be happy to 是乐于（做某事）的 意思，在这里和句意不相符。
另：be happy with 是对（某事）感到满意，可以替换答案，注意区分

Answer 2

D happy一般不这么用 只会这么说：某某happy sb be happy ，或者sb be happy to do sth .be delighted for sb是固定搭陪,为某人感到高兴。be delighted to do

Answer 3

指的是为你而高兴！

Answer 4

be
happy
with
sth
be
happy
about
(doing)
sth
be
happt
to
do
sth

Answer 5

D