she is ------- baby and she is very lovely.a:a-month-old b:an 8-months-old c:an 8-month-old d:a 8-months-old

问题描述:

she is ------- baby and she is very lovely.
a:a-month-old b:an 8-months-old c:an 8-month-old d:a 8-months-old

C. an 8-month-old

本题选【C】8-month-old构成了复合形容词,month只能用复数