Monomorphemic words are realized

Monomorphemic words are realized by single morphs such as________.
A、seed
B、beds
C、wanted
D、desiring
【正确答案】：A
【题目解析】：Most morphemes are realized by single morphs. These morphemes coincide with words as they can stand by themselves and function freely in a sentence. Words of this kind arecalled monomorphemic words.(大多数语素是由单个语素实现的。这些语素与单词重合，因为它们可以独立存在并在句子中自由发挥作用。这种词被称为单态词。)P38