to go abroad made him sad the whole day.
A. Tom’s being not allowed
B. Tom was not allowed
C. Tom’s having not been allowed
D. Tom’s not being allowed
网友回答
A. Tom’s being not allowed
B. Tom was not allowed
C. Tom’s having not been allowed
(答案→)D. Tom’s not being allowed
解析：这是动名词的复合结构做主语，动名词的复合结构有四种形式：①形容词性物主代词＋动名词；②名词's＋动名词；③代词宾格＋动名词；④名词＋动名词。动名词的复合结构可在句中作主语或宾语。作主语时，不能用③、④两种形式；无生命名词不能用第②种形式，无论是作主语还是作宾语。动名词的复合结构，实际上是给动名词加了一个逻辑主语。如： His／Jack's not getting to the station on time made all of us worried．他／杰克没准时到火车站使得我们大家都很担心。
选项B是句子的结构又没有连词故排除B；选项AC，否定词not的位置不对，被排除；故选D