2.On a hundred occasions I have idled (无所事事) in a desert and wondered ______ the lives that had been lived in it.
5.I don't think he's superior ______ us just because his father is an important man.
6."I'll tell______ you when Mummy's back," the boy threatened.
7.The instructions were comprised _____two A5 sheets of paper,half of which were pictures.
8.To classify these units _____ different types is obviously an over-simplification,but it is still a helpful exercise.
9.__________ your health's sake,it is important not to let yourself get overweight.
10.Mr.Smith had also been charged_______ a drunk driving offence the previous evening.
11.The Robinsons have always been on good terms _________ their next door neighbors for their children's sake (缘故).
12.All these come down _________one question:Are common people able to afford cars?
13.Here is a doll for your daughter to play________ .
14.In believing my parents,I was forced _________ the position of not believing in myself.
15.The man entered the country _____disguise and no one knew he was there.