It is questionable whether this is a good way of solving the problem.这里是it做形式主语代替后面的whether从句吗？如果是的话，语法书上不是说除了that从句和不定式，其余都不能加it做形式主语吗？比如名词短语和what从句等。
...文中的一个句子：50% of the country being fully
vaccinated feels a little like a group project where half the team does all the
work.（1）把50%
of the country being fully vaccinated看成是一个以50%
of the country为中心语，being fully
vaccinated作其修饰语的名词短语呢？...
"What? You
are kidding?" I asked."It is true!
We all heard it!" my friends said with full excitement.句中的heard能否用learned？？在词典中learn有听说，了解某情况的意思。盼专家老师解惑，十分感谢。
The word bai means white，and
while Chinese is pronunced “Bai”，so
maybe this is ___their name derives from.这是一道高二填词题，在空白处填写合适的单词。这道题答案是where，我填的what，因为我觉得derive
from后缺成分。请问老师为什么填where呢？
—What did Mr. Smith say about his career?—Only that if he ____ a millionaire, he would have fewer worries. A. did not becomeB. had not becomeC. does not becomeD. has not become求助各位高手，这题选什么？
What began as opposition against a carbon tax designed to curb climate change has morphed into a working-class revolt against Macron.
译文中翻译成这场抗议因为反对碳税而开始，偏向因为的意思那么应该归类为原因状语从句，但是感觉这里是介词。
I am about to make things more complicated by suggesting that what kind
of facility an older person lives in may matter less than we have assumed. 这句话怎么翻译啊，能给讲述一下吗？