2014-2015学年高中英语《步步为营》同步题《3》及答案：unit1（人教新课标必修4）
巩固练习
单项选择(共15小题；每小题1分，满分15分)
1．don’t _______ a person only because has failed in an examination．
a．look up b．look down c．look down on d．look up to
2．it was with great joy _______ he received the news that his lost daughter had been found．
a．because b．which c
