【单选题】Please put Mary's things back where you found them ______ she won't know where they are.
【多选题】《招投标法》中规定,招投标活动应遵循的原则是 、 、 、 。
【多选题】工程建设项目招投标活动应遵循的原则包括( )。
【单选题】—Where’s Mary? —She’s ________ the classroom.
【单选题】—— Where did Mary’s parents buy the beautiful vase? —— It was in the same village _______ they spent their holidays last year.