She always gets tired.We all think she is______ heavy.

楼主这个题目没有上下文,没有提示的词语,也没有选项呢
那意思就只能自己猜了
查了一下,是《八年级检测题》吧?
题目如下：
( )14.She always gets tired.We all think she is _____ heavy.
A.too much B.much too C.too many D.many too
选B
【解析】本题排除C和D项,只剩区别 much too 和 too much
*(too) much -很多,重点在“多”
1．相当于形容词,意为“more than enough”,用在不可数名词前面作定语或在系动词后面作表语.如：
I drank too much cola last night．昨天晚上我可乐喝得太多了.
2．相当于名词,在句子中作主语或宾语.如：
You have given me too much．你给我的太多了.
3．相当于副词,在句子中作状语.如：
She talks too much．她话说得太多了.
*(much) too -程度,“太...”
much too的用法比较简单,只用作副词作状语,但它不单独使用,在句子中要修饰形容词或副词,但不修饰动词.如：
You are much too kind to me．你对我实在太好了.
You are driving much too fast．你开车太快了.