问题
选择题
On Christmas Eve, we put up some balloons to _______ the festival atmosphere.
A.make for
B.add to
C.add up
D.join in
答案
答案:B
题目分析:句意:圣诞节前夕,我们挂起气球增加节日气氛。A. make for 有利于B. add to增加,增强C. add up加起来,总计D. join in参加,加入。故选B。