Question

【题目】David has been missing for 3 days .His mother is too ______to sleep .

A. happy B. energetic C. worried D. curious

Answer 1

【答案】C

【解析】

句意：David已经失踪三天了，他的妈妈太担心以至于睡不着觉。happy开心的；energetic精力充沛的；worried担心的；curious好奇的。根据句意David has been missing for 3 days可知，David的妈妈应该很担心，故应选C。