【简答题】Who is a senior student? ______.
【单选题】I hope I can be an engineer ______. [ ]
【单选题】During the day I can’t work .
【单选题】中国在对美贸易中一直处于顺差,积累了大量的美元资产,其中主要是?
【单选题】— What about having a picnic in the open air during the coming May Day Holiday? — I simply can’t wait!
【简答题】What can the day center do for the old? To keep them from ______during day time.
【单选题】______abroad for a tour can be a worthwhile experience to a senior high student.