Last night we watched film on Channel 6.A. a two-hoursB. a two hoursC. a two-hourD. a two

问题补充：

Last night we watched film on Channel 6.

A. a two-hours

B. a two hours

C. a two-hour

D. a two-hour’s

答案：

A. a two-hours

B. a two hours

(答案→)C. a two-hour

D. a two-hour’s

解析：复合形容词的表达法的结构是：数字+名词（单数）+形容词。所以本题应该选C。