Question

--- What’s the matter? The young mother looks worried.
--- Her little baby boy has_________ fever.
A. /                 B.a            C. the

Answer 1

B

试题分析：句意：怎么了？年轻的妈妈看起来很着急。他的小男孩发烧了。have a fever是固定词组，结合句意，故选B。