【单选题】You ought to check for a cheaper price online.
A.
http://leicloud.ulearning.cn/course/mediacontent/20130911/lesson-04/audio/toeic_ch03_02_02_08a.mp3
B.
http://leicloud.ulearning.cn/course/mediacontent/20130911/lesson-04/audio/toeic_ch03_02_02_08b.mp3
C.
http://leicloud.ulearning.cn/course/mediacontent/20130911/lesson-04/audio/toeic_ch03_02_02_08c.mp3
【单选题】The guests ______ of their rooms in the morning and left.
【单选题】You try to check in online at least an hour beforehand.
【简答题】You___try to check in online.
【判断题】观察法即有目的、有计划地观察学前儿童在日常生活、游戏、学习和劳动中的表现,包括其言语、表情和行为,并根据观察结果分析儿童心理发展的规律和特征。()