He had in finding Mr. Green’s house.
A. many difficulties
B. many difficulty
C. much difficulties
D. much difficulty
网友回答
A. many difficulties
B. many difficulty
C. much difficulties
(答案→)D. much difficulty
解析：词义辨析。Many和much都表示多，many修饰可数名词，much修饰不可数名词。本句中difficulty死不可数名词，故选D。