【题目】---What made him disappointed?
--- visit his grandmother at the weekend.
A. Being not allowed to B. He had not been allowed to
C. Having not been allowed to D. Not being allowed to
在线课程【答案】D
【解析】考查非谓语动词。上句：什么使他失望？下句：不被允许周末去看他奶奶使他感到失望。此处是动名词一般式被动式的否定形式做主语。故选D。