问题
When the applause ______, Obama continued his speech.
A:died off
B:died down
C:died out
D:died of
B:died down
C:died out
D:died of
正确答案是：
同类题型
It took ______ building supplies to construct these energy-saving houses. It took brains, too.
Although the wind has ________，the rain remains steady，so you still need a raincoat.
Even if your suggestions are ，at least you have tried your best
Which of the following words comes first in the English dictionary (字典)