选择题 Tom has much difficult ___Chinese an Iofen help him ____it

1.Have
difficulty
in
doing
sth
是固定句型,意思为"在做某事时有困难",in
为介词,表某些方面,所以末尾跟动名词doing.
help
sb
with
sth,help
sb
do
sth
2.open
在此为形容词,作表语,意思为"开着的",stay在此为系动词.
3.asked
for
意思为"需要,要求."

1
have
difficult
in
doing
sth.
做某事有困难
in
介词
后接
动名词
2
open
有三种词性形容词，副词，动词
这里是副词修饰stay
保持开着
3
我再研究一下哈，

1
have
much
difficult
in
doing
sth(或介词后接动名词)
help
sb
with
sth
2
这里的open做形容词，译为打开的
3
ask
about
是指询问关于某事或某物，ask
for
则是指请求
要求做某事。